Tuesday, June 25, 2024

AI at work


 

Today (25-06-24) got an email from ai.feedback@outlook.com, with subject "Feedback on your recent arXiv preprint 2401.14217". Here it is

Hi there,

Congratulations on your recent preprint on arXiv, titled "The explicit form of the unitary representation of the Poincar\'e group for vector-valued wave functions (massive and massless), with applications to photon's localization and position operators". We are grateful for your hard work and dedication to the field, and we value your contributions!

We are part of a team from Northwestern University, Stanford University, and Cornell University, committed to providing research feedback to scholars with the assistance of advance AI models. We have followed your work closely and, upon a thorough examination, generate the suggestions below. These suggestions cover various aspects of your work, including the writing style, research design, and title. We hope they offer you fresh insights that may enhance the depth and impact of your research.

To view detailed comments regarding your research, please visit this link: http://feedback.kellogg.northwestern.edu/FNQ3OO.html

Once again, congratulations on your achievement. We are certain that your work will have an impact on the future of your field and will inspire fellow researchers worldwide.

Should you have any questions, concerns, or suggestions, please do not hesitate to reach out to us at ai.feedback@outlook.com. Your insights would be invaluable in helping us better support the community's research development.

Best regards,

Feedback Team

And here are AI suggestions:

The explicit form of the unitary representation of the Poincar\'e group for vector-valued wave functions (massive and massless), with applications to photon's localization and position operators

1. Significance and Novelty

Geometric Derivation: Innovatively builds a unitary representation of the Poincaré group using a geometric framework.

Photon Position Operators: Offers an explicit form for the photon position operator with commuting components, aligning with the HawtonBaylis formulation.

Affine Connections: Compares the Pryce and HawtonBaylis connections, highlighting differences in semisymmetry and metric properties.

Photon Localization: Provides a rigorous analysis of photon states localized on loops, applying both the HawtonBaylis operators and the JauchPironAmrein POV measure.

2. Suggestions for Improvement Mathematical Rigor and Clarification:

Contextual Clarification: The paper should more explicitly clarify the context and motivation behind the study of photon position operators. While the historical background is comprehensive, linking it directly to the benefits and applications of photon localization in contemporary quantum mechanics could enhance reader engagement.

Detailed Proofs: Include more detailed proofs for the derivations of the photon boost eigenmodes and related transformations. For example, the section detailing the explicit form of so obtained unitary representation and its limit to m=0 would benefit from stepbystep mathematical exposition.

Figures and Tables:

Inclusion of Visual Aids: The manuscript lacks visual aids. Diagrams illustrating the geometric constructs, and tables summarizing the comparative properties of different connections (e.g., metric semisymmetry versus flatness) could significantly enhance comprehension.

Clarity in Captions: Ensure that all figures and tables have clear, selfexplanatory captions. The absence of such captions in the current outline is a noticeable omission.

Comprehensive Literature Review: Expand Bibliography: While the references are robust, ensure that all recent relevant studies are included. For instance, adding discussions about recent empirical studies or theoretical advancements related to photon localization and affine connections could provide a more comprehensive view.

Terminology and Notation: Consistency: Ensure that terminology and notations are used consistently throughout the paper. For example, the term HawtonBaylis connection should be used uniformly without alternation if it is referred to by other names.

Structure and Readability: Section Consistency: Improve the flow between sections. The transition from one main section to another sometimes feels abrupt. Providing brief introductory and concluding paragraphs within sections could improve overall coherence.

Abstract Brevity and Focus: The abstract is too technical and dense for a general reader. Consider distilling it to highlight the core contributions and findings succinctly, reserving detailed technicalities for the main text.

Theoretical Implications: Implications of Findings: Expand on the potential implications of your theoretical findings. For example, how do the new photon position operator and the findings on different connections impact future research perspectives or practical applications in quantum field theory or optics?

By addressing these suggestions, the authors can significantly improve the clarity, impact, and comprehensiveness of their paper. The emphasis on more explicit motivational contexts, visual aids, detailed proofs, and thorough discussions on potential implications will not only make the paper more accessible but also more valuable to the scientific community.

3. Suggestions on Title

Original Title

The explicit form of the unitary representation of the Poincar\'e group for vector-valued wave functions (massive and massless), with applications to photon's localization and position operators

Recommended Titles

Unitary Representations of the Poincaré Group in Photon Localization

Reasoning: This title is concise and highlights the core mathematical and physical concepts of unitary representations and photon localization."

Photon Localization through Unitary Poincaré Group Representations

Reasoning: Reverses the structure for emphasis on photon localization

Geometric Derivations of Unitary Poincaré Representations and Photon Position Operators

Reasoning: Incorporates the geometric aspect

Affine Connections and Photon States in Unitary Poincaré Representations

Reasoning: Specifically mentions affine connections

Photon Position Operators and Localization via Unitary Poincaré Group Theory

Reasoning: This title combines the key elements - photon position operators and localization - with the Poincaré group

4. Grammar Check for Abstract

1.Original Sentence: We geometrically derive the explicit form of the Unitary representation of the Poincaré group and use it to apply speed-of-light boosts to simple polarization basis to end up with Hawton-Baylis photon position operator with commuting components.

    ErrorType: Subject-Verb Agreement Errors

    Explanation: The verb 'apply' should be in its base form as it follows 'use it to'

    Recommended Fragment: apply speed-of-light boosts to a simple polarization basis

2.Original Sentence: We geometrically derive the explicit form of the Unitary representation of the Poincaré group and use it to apply speed-of-light boosts to simple polarization basis to end up with Hawton-Baylis photon position operator with commuting components.

    ErrorType: Incorrect Word Usage

    Explanation: The phrase 'simple polarization basis' should include an article 'a' to be grammatically correct.

    Recommended Fragment: apply speed-of-light boosts to a simple polarization basis

3.Original Sentence: Finally we discuss localizabil- ity of photon states localized on closed loops and show that photon states on the circle, both unnormalized improper states and finite norm wave packet smeared over washer-like regions are strictly localized with respect to Hawton-Baylis oper- ators with commuting components and also with respect to the noncommutative Jauch-Piron-Amrein POV measure.

    ErrorType: Spelling Errors

    Explanation: The word 'localizabil- ity' is split incorrectly over two lines and should be corrected to 'localizability'.

    Recommended Fragment: Finally we discuss localizability

4.Original Sentence: photon states on the circle, both unnormalized improper states and finite norm wave packet smeared over washer-like regions are strictly localized with respect to Hawton-Baylis oper- ators with commuting components and also with respect to the noncommutative Jauch-Piron-Amrein POV measure.

    ErrorType: Spelling Errors

    Explanation: The word ‘oper- ators’ is split incorrectly over two lines and should be corrected to ‘operators’.

    Recommended Fragment: operators with commuting components and also

* Disclaimer: The grammar suggestions provided are checked by advanced AI models and are intended for reference purposes only.

5. Grammar Check for Introduction

1.Original Sentence: Introduction The group-theoretical analysis of elementary relativistic quantum systems lead to the concept of imprimitivity systems, developed by G.W. Mackey (cf. e.g. [2, Ch. VI] and references therein), and to the associated concept of the localization of elemen- tary quantum particles.

    ErrorType: Run-On Sentence

    Explanation: The sentence lacks proper punctuation to separate distinct ideas.

    Recommended Fragment: Introduction. The group-theoretical analysis of elementary relativistic quantum systems led to the concept of imprimitivity systems, developed by G.W. Mackey (cf. e.g. [2, Ch. VI] and references therein), and to the associated concept of the localization of elementary quantum particles.

2.Original Sentence: A.S. Wightman [3] applied these concepts to the study of localizability of quantum mechanical systems and came to conclusion confirming the previous analysis of T.D. Newton and E.P Wigner [4], namely that photons (as well as other particles of rest mass zero and helicity ≥ 1) are covariantly non-localizable in a strict sense of an imprimitivity system bases on the 3-d Euclidean group acting on R 3 ..

    ErrorType: Run-On Sentence

    Explanation: The sentence lacks proper punctuation to separate distinct ideas.

    Recommended Fragment: A.S. Wightman [3] applied these concepts to the study of localizability of quantum mechanical systems and came to the conclusion confirming the previous analysis of T.D. Newton and E.P. Wigner [4]. They determined that photons (as well as other particles of rest mass zero and helicity ≥ 1) are covariantly non-localizable in a strict sense of an imprimitivity system based on the 3-D Euclidean group acting on R3.

3.Original Sentence: J.M. Jauch and C. Piron [5], developed a concept of \"weak localizability\" replacing projection-valued measure by POV (positive operator-valued) measures, and A.O. Amrein [6] proved that there exist photon states strictly POV-localized in arbitrarily small regions of space, while, more recently, I. and Z. Bialynicki-Birula [7] argued that photons cannot be sharply localized because of a kind of complementarity between magnetic and electric energy localization.

    ErrorType: Run-On Sentence

    Explanation: The sentence lacks proper punctuation to separate distinct ideas.

    Recommended Fragment: J.M. Jauch and C. Piron [5] developed a concept of \"weak localizability\" by replacing projection-valued measures with POV (positive operator-valued) measures. Additionally, A.O. Amrein [6] proved that there exist photon states strictly POV-localized in arbitrarily small regions of space. More recently, I. and Z. Bialynicki-Birula [7] argued that photons cannot be sharply localized due to a kind of complementarity between magnetic and electric energy localization.

4.Original Sentence: It is rather easy to show that the standard requirements of the covariance with respect to the Euclidean group and inversions lead to a unique Q, - known as the Pryce photon position operator 2 [8], the trouble is that the components Q i do not commute, which makes the simple probabilistic interpretation for the photon's localization problem impossible.

    ErrorType: Run-On Sentence

    Explanation: The sentence lacks proper punctuation to separate distinct ideas.

    Recommended Fragment: It is rather easy to show that the standard requirements of covariance with respect to the Euclidean group and inversions lead to a unique Q, known as the Pryce photon position operator [8]. The trouble is that the components Q i do not commute, which makes the simple probabilistic interpretation for the photon's localization problem impossible.

5.Original Sentence: acting on R 3 ..

    ErrorType: Sentence Fragment

    Explanation: The sentence lacks a subject and verb to create a complete thought.

    Recommended Fragment: acting on R3.

* Disclaimer: The grammar suggestions provided are checked by advanced AI models and are intended for reference purposes only.


P.S. 28-06-24 15:49 I received something that I did not expect:

I am surprised because I wrote only one paper on this subject: https://doi.org/10.5281/ZENODO.12506503


P.S. 29-06-24 12:08 I am currently learning Prompt Engineering with ChatGPT. With an account set up and the valuable advice and encouragement from Natasha Urakchina, I am embarking on a journey to navigate the vast sea of science.



P.S. 29-06-24 12:33 A while ago I noticed the following paper that attracted my attention:

by Daniel Hodgson 1,Sara Kanzi, Symmetry 2024, 16(3), 279; https://doi.org/10.3390/sym16030279

There we find in particular:

"3. The Quantised EM Field in the Stationary Frame
For a long time, it has been believed that photons do not have a wave function and that light cannot be localised [55–57]. However, quantum physics should apply to all particles, and photons should not be an exception. For example, when a single-photon detector clicks, it measures the position of the arriving photon at that instant in time [58,59].
Defining a time of arrival operator for a localised photon detector, however, has beena significant problem and could not be achieved within the standard Hilbert space of the quantised EM field[ 60–64]. The origin of the wave function problem was that many authors liked to identify the wave function of the photon with its electric fi eld amplitudes, but the complex electric fi eld amplitudes at different positions do not commute. The eigenstates of the observable electric fi eld are therefore not local, although they can be made to appear local by altering the scalar product that is used to calculate the overlap of quantum state vectors [24,65].
An alternative way of establishing the wave function of a single photon is to double the Hilbert space of the quantised EM fi eld to include both positive and negative frequency photons and to separate light from its carriers [25–27]. The carriers of the quantised EM fieeld in momentum space are nonlocal monochromatic waves. The Fourier transforms of these carriers, the blips (which stands for bosons localised in position), however, form a complete set of pairwise orthonormal local carriers of the quantised EM fi eld in position space. Similar to how a point mass is a carrier for a gravitational fi eld, blips are carriers of nonlocal electric and magnetic field amplitudes. When expressing the observables of the electric and magnetic field in free space in terms of blip annihilation and creation operators, these include contributions from blips at all points along the position axis. By applying a constraint to the blip dynamics, a relativistically form-invariant representation of the EM field is derived. Below, these expressions are used to derive a transformation between the blips in Alice’s and Bob’s reference frames. "


My much older (1996) paper dealing with time of arrival, "Time of events in quantum theory" coauthored with Ph. Blanchard, has garnered significant attention with 70 citations.

P.S. 30-06-24 13:34 From my today's chat:

My Prompt: 

I have read in a paper that I do not remember that the conformal is unique in the sense that it cannot be obtained via deformation of some other group. I think the author of this result is Segal, but I do not remember the details. Can you help mi by proposing possible references where this kind of statement can be found?

Response: 

The assertion that the conformal group is unique in the sense that it cannot be obtained via deformation of any other group is indeed associated with the work of Irving Segal. Segal's contributions highlight the rigidity of the conformal group, meaning that its structure is fixed and cannot be smoothly transformed into another group through a process of continuous deformation.

One of the key insights from Segal's work is that while other groups can be deformed into one another, the conformal group stands out as an exception. This uniqueness makes it a fundamental aspect of the symmetries in spacetime and field theories. Segal demonstrated that the Lie algebra of the conformal group cannot be obtained from that of another group through deformation, solidifying its place as a distinct and fundamental structure in mathematical physics.

For further reading and detailed explanations, you might want to look into Segal's original works and subsequent analyses, such as those discussed in the context of conformally compactified Minkowski space and related geometric constructions​ (ar5iv)​​ (Wikipedia)​. These sources provide comprehensive insights into the unique properties of the conformal group and its implications in both mathematics and physics.

Not too bad at all, even if I aware of the fact that the responses are individually tailored, and different users will get not necessarily the same answers. Both sources, (ar5iv)​​ (Wikipedia)​, have links. The first one, by the way, is to my own paper!!!

P.S. 30-06-24 13:54 AI is really dangerous. "Parker Emmerson", for instance, has 174 papers on Academia.edu, all with highly provoking titles.. They look to me like all written by AI with some unclear purpose. These papers are then analyzed by ChatGPT, and their content may be used in responses to others. This way the quality of od responses is self-degrading (perhaps exponentially?) with time. Every disinformation put on the web is thus amplified!!!

P.S. 01-07-24 9:24 I asked the same question about the uniqueness of the conformal group another GPT, namely YandexGPT, which is based on GPT 3 (and seems to be mainly business oriented). 



The answer was disappointing

Response:

I'm sorry, but without more specific details about the paper or the context in which the statement was made, it is difficult to provide specific references. However, you can try searching for papers by Irving Segal or other researchers who work on conformal field theory and related topics.

Here are some steps you can take to find relevant references:

Try searching online databases such as Google Scholar or arXiv for papers written by Segal that might contain the statement you remember. You can also try searching for related terms such as "conformal field theory" or "conformal group".
Look for textbooks or review articles on conformal field theory that might discuss this result. These may provide more context and references to the original paper.
Contact a researcher who works on conformal field theory or related areas and ask them if they know of any papers that discuss this result or if they have any suggestions for further reading.
If you still cannot find the reference, consider consulting with a librarian or research advisor who can help you search for relevant materials.

On the Net I have found the following funny comparison of ChatGPT with YandexGPT:

"There are 8 benches in the park. Three were painted. How many benches are there in the park?"

ChatGPT-3.5's response: "There are still 8 benches left in the park, just three of them have been painted."

YaGPT's answer: "There are 5 benches in the park." 

P.S. 01-07-24 17:00 

A must watch (be patient - slow may be a connection):

https://www.bitchute.com/video/GYJO44ydWgif/ 

A must read: 

https://courses.jchristoff.com/blog/how-the-vaccinated-can-use-their-compliance-to-fully-understand-mind-control-and-psychological-manipulation

P.S. 02-07-24 17:23 I am finding the Penrose's 1967 paper "Twistor Algebra" has been cited 976 times!

P.S. 03-07-24 This morning I asked ChatGPPT for help, using the following Prompt:

I received the following email from X X: "Dear Professor Jadczyk, I hope you are in good health and high spirits. We were so delighted to hear that you'll be chairing a Mathematics Webinar on "The Measurement Problem in Quantum Theory". I am writing to follow up on whether you have any speakers in mind and the month you would like to hold the webinar. Attached is the document for us to proceed further. When the speakers and time are confirmed, I would appreciate it if you could send me the document back. Should you have any inquiries or require assistance, please do not hesitate to reach out to me. I am here to provide any necessary support. I look forward to hearing from you. -- Best regards, X X Managing Editor Mathematics Editorial Office "  

Please, help me to write a reply to this message. I want to tell X that I will NOT organize any such webinar, because I am too busy with other obligations and simply do not have time for any organizational activities. Please make the answer to sound kind, friendly, somewhat jokingly, and sounding a little bit old baroque stylish. At the end add something that will make this X feel happy and smiling.

Here is the Response

Dear Ms. X,

I trust this missive finds you in the very pink of health and delight.

Your gracious note reached my desk, and I must confess it brought a smile to my face as I envisioned the grand symposium you described. The subject, indeed, is a matter of great fascination and import in the realm of quantum theory, and I am humbled by the thought of chairing such a distinguished gathering.

Alas, I must beg your indulgence, as the weight of my current obligations leaves me scarcely a moment to catch my breath, let alone to undertake the organization of such an illustrious event. The labyrinth of my daily tasks and commitments has me ensnared to a degree that permits naught but the barest of escapes.

Therefore, with a heart both heavy and lightened by the fondness of your kind offer, I must regretfully decline the honor of organizing this esteemed webinar. I assure you, my dearX, this decision is wrought from the deepest depths of necessity rather than desire.

May I, however, extend my sincerest wishes for the grand success of your endeavor? And should you require a humble participant or an enthusiastic audience member, I shall be at your service with the utmost alacrity.

With warmest regards and a twinkle of good humor,

Professor Jadczyk

P.S. I am certain that with your delightful charm and keen organizational acumen, the webinar will shine as a beacon of enlightenment and joy, leaving all who attend with hearts uplifted and minds enriched.

I admit: I shamelessly used without any changes! Probably I shouldn't... Then I asked:

Thank you! What was your Temperature while providing your last Response?

The Response was:

My response was generated with a focus on a friendly and formal tone, tailored to match your request for a kind, somewhat humorous, and old baroque stylish message. In terms of "temperature" as a metaphor for writing style, it was set to be warm and engaging, aiming to strike a balance between formality and friendliness.

If you are referring to the technical term "temperature" used in AI language models, which controls the randomness of the output, I don't have a direct measure of that for each response. However, the style and tone were crafted to meet your specific requirements for a pleasant and engaging reply.

YandexGPT proposed perhaps a more appropriate reply:

Dear X,

I hope you are having a wonderful day! I received your email and I am so glad that you wrote to me. I must confess that I am overwhelmed with my current obligations and simply do not have the time to organize a webinar on "The Measurement Problem in Quantum Theory". However, I appreciate your enthusiasm and interest in this topic.

It is truly a shame that I cannot take on this task, but I am sure that there are many other brilliant minds who can step up and organize such an event. Perhaps you could find someone else who would be willing to take on the challenge.

Best regards,

Professor Arkadiusz Jadczyk

YandexGPT shows the Temperature of the response. It was the default 0.3. 

P.S. 05-07-24 8:51 And so I asked ChatGPT this question:

I am working on Mathematica code drawing a picture of the torus. Here is my code: torus2[a_, b_][fi_, psi_] := {(a + b Cos[fi]) Cos[psi], (a + b Cos[fi]) Sin[psi], b Sin[fi]} mc = ParametricPlot3D[ torus2[8, 3][fi, psi], {fi, 0, 2 Pi}, {psi, 0, 2 Pi}, Mesh -> None, PlotStyle -> Directive[Opacity[0.6], LightGray, Specularity[White, 10]]] inf1 = ParametricPlot3D[torus2[8, 3][fi, fi], {fi, 0, 2 Pi}, PlotStyle -> {Black, Thick}] inf2 = ParametricPlot3D[torus2[8, 3][fi, Pi - fi], {fi, 0, 2 Pi}, PlotStyle -> {Black, Thick}] Show[{mc, inf1, inf2}] Can you propose a simplification of this code?

Here is the response:

Sure, we can simplify your code by defining the torus once and then using it for both ParametricPlot3D and the Show function. Here's a simplified version of your code:

(* Define the torus function *)

torus2[a_, b_][fi_, psi_] := {(a + b Cos[fi]) Cos[psi], (a + b Cos[fi]) Sin[psi], b Sin[fi]}

(* Plot the torus *)mc = ParametricPlot3D[

  torus2[8, 3][fi, psi], {fi, 0, 2 Pi}, {psi, 0, 2 Pi}, 

  Mesh -> None, 

  PlotStyle -> Directive[Opacity[0.6], LightGray, Specularity[White, 10]]

]

(* Plot the intersecting lines on the torus *)

inf1 = ParametricPlot3D[

  torus2[8, 3][fi, fi], {fi, 0, 2 Pi}, 

  PlotStyle -> {Black, Thick}

]

inf2 = ParametricPlot3D[

  torus2[8, 3][fi, Pi - fi], {fi, 0, 2 Pi}, 

  PlotStyle -> {Black, Thick}

]

(* Combine the plots *)

Show[{mc, inf1, inf2}]


And the code works! Not too bad at all! 

P.S.  03-07-24 9:42 Got a reply from X X! Here it is:

Dear Professor Jadczyk,

Thank you so much for your kind and thoughtful response. It was a pleasure reading your note, and I understand completely about the constraints on your time and energy. Your warm wishes mean a great deal to us, and your enthusiasm for the subject matter is heartening.

Wishing you the very best in all your endeavors. Have a nice summer!

Best regards,

X X 

So, I asked ChatGTP what is the probability that this reply was AI-generated. Received the following response:

Assessing whether an email response is AI-generated or written by a human can be quite challenging without definitive markers. However, certain characteristics can help in making an educated guess. Here are some elements to consider:

Language and Tone: AI-generated responses often have a certain consistency in tone and politeness. The reply you received is very polite, concise, and lacks any personal or emotional nuances that might be more characteristic of a human response.
Structure: AI-generated responses tend to follow a predictable structure: acknowledging the received message, expressing understanding or empathy, and ending with well wishes. This response follows that pattern closely.
Personalization: Human responses may include more personalized details or specific comments relating to previous interactions. This response, while polite and appropriate, is fairly generic.
Errors and Style: Human emails sometimes contain typos, informal language, or unique stylistic elements. The absence of these can sometimes hint at an AI origin, although it is by no means conclusive.
Contextual Cues: If the organization frequently uses AI for correspondence, this increases the likelihood. Without knowing more about the practices of the Mathematics Editorial Office, it is hard to say definitively.

Given these considerations, while the reply you received is polished and formal, which might suggest it could be AI-generated, there is no definitive evidence. Many human professionals write in a similarly structured and polite manner, especially in formal or professional contexts.

Thus, it is plausible but not certain that the response was AI-generated. If you have prior interactions with X X and can compare the writing styles, it might provide further clues.

P.S. 03-07-24 10:08 Reading the 1967 paper "Twistor Algebra" by Roger Penrose, on p. 348, there is the following footnote

5. To give a rigorous definition of a spinor which takes into  account its sign,  it is  usual  to  appeal  to  the  theory of  fibre bundles.  This  is  not  essential,  however,  and an elementary (nonlocal) geometrical description will be given in an appendix to a  forthcoming book by R.  Penrose and W.  Rindler on the applications of spinors in relativity.  

It is interesting that this "forthcoming book" has been published only in 1984. Thus it took 17 years to prepare this book for publishing!!!

P.S. 09-07-24 10:31

Sabine Hossenfelder
My dream died, and now I'm here

P.S. 09-07-24 14:36

Watched this video:


Sabine Hossenfelder
I don't believe in free will. This is why.

Then I added the following comment on the Youtube channel:

Sabine, I asked Chat GPT about “free will”. Here is my prompt:

The concept of "free will" may have many different meanings. I would like to know if psychologists have done some research on the following topics: Which factors influence the amount of free will while people are taking decisions? Can the amount of free will in a given person at a given time be evaluated, and if so, how? “

And here is the response:

Psychologists have indeed explored the concept of free will and the factors that influence decision-making. Research in this area often intersects with cognitive psychology, social psychology, and neuroscience. Here are some key findings and methods related to your questions:

Factors Influencing Free Will in Decision-Making

Cognitive Load: When individuals are under high cognitive load (e.g., multitasking or under stress), their ability to exercise free will may be reduced. This is because cognitive resources are limited, and complex decision-making can be impaired.
Social and Environmental Influences: Social norms, peer pressure, and environmental contexts can significantly impact decision-making. For instance, individuals might conform to group decisions or be influenced by authority figures, reducing their perception of exercising free will.
Emotional State: Emotions can either enhance or impair decision-making. For instance, positive emotions can lead to more creative and open-minded decision-making, while negative emotions like fear or anxiety can lead to more constrained and risk-averse choices.
Personality Traits: Traits such as locus of control (whether individuals believe they have control over events in their lives) play a role. Those with an internal locus of control are more likely to feel they are exercising free will compared to those with an external locus of control.
Psychological Conditions: Conditions such as depression or anxiety can affect one's perception of agency and free will. For example, depressive individuals may feel a lack of control over their actions and decisions.
Neuroscientific Factors: Brain activity and neural mechanisms also play a role. Research using fMRI and EEG has shown that certain brain regions (e.g., the prefrontal cortex) are crucial for decision-making processes that involve free will.

Evaluating Free Will

Evaluating the amount of free will a person perceives in their decision-making can be challenging, but there are several approaches:

Self-Report Measures: Psychologists use questionnaires and surveys where individuals report their sense of autonomy and control in their decisions. Examples include the Free Will and Determinism Scale (FAD-Plus) and the General Causality Orientations Scale.
Behavioral Tasks: Experimental tasks can measure decision-making processes. For example, researchers might use choice reaction time tasks to see how much deliberation is involved in making a choice, which can be an indirect measure of free will.
Neuroimaging: Techniques like fMRI or EEG can measure brain activity related to decision-making. Differences in brain activation patterns can indicate the degree of conscious control or automaticity in decisions.
Implicit Measures: Implicit Association Tests (IAT) and other implicit measures can assess underlying beliefs and biases that might influence perceived free will without relying on self-report.

Research Examples

Baumeister, R. F., & Monroe, A. E.: Their research has explored how individuals perceive their own and others' free will and the factors that influence these perceptions.
Vohs, K. D., & Schooler, J. W.: They investigated how manipulating beliefs in free will can affect moral behavior and decision-making.
Libet, B.: Conducted famous experiments on the timing of conscious intention and brain activity, suggesting that unconscious brain processes initiate actions before conscious awareness.

Conclusion

The perception and exercise of free will in decision-making are influenced by a myriad of factors ranging from cognitive load and emotional state to social influences and brain mechanisms. Evaluating free will involves both subjective self-reports and objective measures like neuroimaging and behavioral tasks. Psychological research continues to deepen our understanding of this complex and multifaceted concept.”

Perhaps your skepticism about free will stems from a specific and narrow definition you hold. If you consider redefining what free will means, you might not only find it more plausible but also see new opportunities for understanding it, and measuring its amount at any given time in any given person more effectively/objectively. 



P.S. 10-07-24 14:50 I tried to fix the html code of this post, and the result is even worse than it was. A ghost of a video appears at the beginning of the comments section! Well, we learn on mistakes! 



Saturday, June 15, 2024

The Goldilocks Enigma – Part Six

 by Laura Knight-Jadczyk

In the previous post, we learned how scientists have been able to use the ‘hot big bang’ theory to extrapolate how the chemicals for life came into being.  I noted that the theory includes the idea that the initial ‘searing hot plasma’ was composed of ‘freely moving atomic components’ such as protons, neutrons and electrons’ which came from where?  No clue. 

We learned that the universe is composed of mostly hydrogen and helium in a 3 to 1 ratio, and the theorized processes of the big bang have been confirmed (at least in part, I guess) in atom colliders. We also learned that, at the initial stages of the theory, the universe was allegedly “squeezed into a volume of space no larger the solar system, with temperature almost a million times hotter than the center of the sun.”  In passing, I noted Weizsäcker’s ‘information-theoretic” idea. 


Created by A.J. using AI software Kandinsky 3.1 with the following  command:
 'a drawing of an inflating universe at the instant of initial inflation

One important thing learned was that the rate of expansion vs deceleration played a very important role in the physical processes taking place at a given time, i.e. the creation of the different materials and conditions necessary for life. 

Then, there was Alan Guth and his ‘inflation’ as opposed to ‘expansion’.  In this theory the universe jumps from something the size of a single proton to the size of a grapefruit virtually instantaneously, i.e. almost like creation by fiat!  According to Guth, this is all thanks to a scalar field that has a pressure comparable to its energy and produces anti-gravity though this process had to stop pretty quick or everything would go kaflooey.  So, conveniently, Guth’s scalar field is ‘inherently unstable’ and just peters out after a bit. That is, instead of an explosion, there’s just this instant inflation and the energy stored in the inflation field turns into heat and this heat created all the 1050 tons of matter in the universe.  Nobody has yet observed a scalar field, according to Davies.

I thought about all of that for a while and the thing that bothered me is this: The initial Standard model, according to Davies, proposes that the primal universe was “squeezed into a volume of space no larger the solar system, with temperature almost a million times hotter than the center of the sun.”  The solar system is more than 28 billion miles in diameter.  Then Davies said: "the universe doubled in size between 1 and 2 microseconds (a millionth of a second)".  That means that the outer edges traveled 2x28 billion miles in a microsecond.  That means that this expansion took place waaay faster than the speed of light.  Now, I’m not a mathematician, so I mentioned this to Ark who noted that the solution to this problem usually given is that ‘the speed of light does not apply to the edge of the universe.’ He then pointed me to this page: The Universe Could Be Eternal, According to This Controversial Theory  There we read:

·       Controversial research suggests the Big Bang may be a myth due to its reliance on the Doppler effect theory.

·       This idea says the universe is neither expanding, nor contracting; instead it is steady, and has no beginning and no end.

The author of this theory thinks that the redshift on which all we have been looking at so far has been based, is a red herring. We read there:

“The Doppler’s effect is a 180-year old theory nobody has backed up with experimental evidence,” Wilenchik tells Popular Mechanics. To look at different planets and moons in the solar system, Wilenchik, who is a lawyer by trade and an amateur astronomer, borrowed a simple spectroscopy test English astronomer William Huggins had first used in 1868. Spectroscopy is the study and measurement of spectra, or the charts or graphs that depict the intensity of light from an astronomical body like a star. Wilenchik also used data from the Hawaii-based Keck Observatory’s spectrometers—available online—and had a professional astrophysicist process it for him. The results of his study align with a different, incompatible idea about the universe: the tired light model.

The 1929 brainchild of Swiss astronomer Fritz Zwicky, the tired light hypothesis attributes the universe’s redshift to the fact that photons, the tiny packets of electromagnetic energy that make up light, lose energy as they pass through the great cosmos. Therefore, a decrease or increase in energy doesn’t necessarily mean movement, so no stretching universe can exist. This model indicates that light simply loses energy over time—and so the universe must be static.


Read the article for the pros and cons as well as another article about the same: Quasi Steady-State theory: the Big Bang alternative explained.   There we read: 

"To his death, Hoyle would never submit to the Big Bang theory. A small subset of cosmologists still work on resurrecting a steady state model; but, on the whole, the community overwhelmingly supports the Big Bang theory."

Ark further pointed me to this discussion  where he says “Here is the discussion that shows how it is all confusing. It is like arguing lawyers. Whatever arguments one lawyer would have, another lawyer will always be able to find arguments to the contrary.”

It is here that we notice that apparently Guth’s model proposes that the primal universe, before inflation, was ‘the size of a coin’.  Obviously, that’s a lot smaller than a solar system sized primal atom and far more satisfactory to those who don’t want to have to explain where all that primal mass came from.  And here we see my question: ‘Can space expand with unlimited speed?’ The first answer says ‘yes’, more or less:

The expansion hasn't got a speed. It is a misnomer to say that it is a speed. It should be called expansion rate. It is not like two points having a relative speed, it is more like a scaling rate of the unit distance. If there were no masses in the universe we would not sense any expansion at all. – Oktay Doğangün, Commented Apr 15, 2018

Then, there is a long, complicated answer with equations and graphs.  Go check it out at the link. The bottom line is the following:

·       The current (co-moving) distance of the edge of the observable universe is 46.2 billion ly. Of course, the total universe can be much bigger, and is possibly infinite. The observable universe will keep expanding to a finite maximum co-moving distance at cosmic time t=∞, which is 62.9 billion ly. We will never observe any source located beyond that distance.

·       The edge of the observable universe is receding from us with a recession velocity of more than 3 times the speed of light. 3.18c, to be exact. In other words, we can observe sources that are moving away from us faster than the speed of light. Sources at co-moving distances of 10, 20, 30 and 40 Gly are receding from us at 0.69, 1.38, 2.06 and 2.75 times the speed of light, respectively.

·       Sources outside our particle horizon are moving away even faster. There is no a priori limit to the maximum recession velocity: it is proportional to the size of the total universe, which could be infinite.

A third answer to the question:

Yes, the expansion of space itself is allowed to exceed the speed-of-light limit because the speed-of-light limit only applies to regions where special relativity – a description of the spacetime as a flat geometry – applies. In the context of cosmology, especially a very fast expansion, special relativity doesn't apply because the curvature of the spacetime is large and essential.

So, apparently, the inflation/expansion of the universe at faster than the speed of light, does not violate relativity because it is space that is expanding not the objects themselves moving within that space.  And, by fiat, there is no limit to the expansion rate of space.

Finally, the very day Ark and I were discussing this, I found this article:   'Physics itself disappears': How theoretical physicist Thomas Hertog helped Stephen Hawking produce his final, most radical theory of everything

So, yet another lawyer arguing his case.

When Davies wrote “The Goldilocks Enigma” in about 2006, it was as up-to-date as he could make it.  But it is clear that the ‘science is not settled’ at all.  In the next post, we’ll pick up with Davies again and see where he was going.  I just thought an interlude showing where things are today would be useful. 

Saturday, June 8, 2024

The Goldilocks Enigma – Part Five


 

By Laura Knight-Jadczyk

In the previous post we learned that, apparently, the better our technology, the older the universe appears to be.  Hubble can, apparently, see 28 billion years back in time. We also learned that the universe is unbounded, but still finite, but we still cannot see over the cosmic visual horizon.  We also learned that, apparently, we are more or less trapped in our 3 dimensional world and it is irrelevant that we may be embedded in some higher dimensional space since we can’t perceive it.  I’m not so sure about that since I have long thought that what we call ‘paranormal’ may actually be instances of perception of other/higher dimensions.  We touched on how other dimensions could be hidden from us and Davies mentioned compactification and branes. We also learned that it seems that it appears to be necessary for us to live in a 3D world since a 4D world (or higher) would not be sustainable;  3 dimensions are ‘just right’.  Ark added a note that he would not be surprised if there is both compactification and branes as well as other possibilities to explain what is going on that hides other dimensions from us.  Finally, I included two articles that appear to contradict the Standard Model which I am endeavoring to describe in these posts.

So now, let us continue.  Among the top requirements for a life-friendly universe is a good supply of the chemical elements that are utilized to make and sustain living organisms.  Scientists have been able to use the ‘hot big bang’ theory to extrapolate how these chemicals came into being.  Apparently, at the moment of the big bang, such elements did not exist because, at one second after the big bang, the temperature was about ten billion degrees.  Atoms cannot survive those temperatures, so, at that moment, there was only searing hot plasma of ‘freely moving atomic components.’  Now, Davies writes that “even atomic nuclei would be smashed apart” at such high temperatures, but when he writes that the plasma was composed of ‘atomic components’ he lists protons, neutrons and electrons and I cannot help but ask: where did the protons, neutrons and electrons come from? Who/what decided that plasma should/could/would be composed of these little critters that can make atoms?  According to Wikipedia: “By the first second, the universe is made up of fundamental particles and energy: quarks, electrons, photons, neutrinos and less familiar types. These particles smash together to form protons and neutrons.”  It seems to me that these ‘fundamental particles’ might tell us something about the nature of the alleged primordial mass that ‘exploded’ and became the universe. Well, anyway, let me quote Davies here:

“Most of the protons that came out of the big bang remained free, and were destined to form hydrogen atoms once the universe had cooled enough for each proton to capture an electron.  (That final step didn’t happen for nearly 400,000 years.)  Meanwhile, however, not all the protons were left isolated.  Some of them collided with neutrons and stuck to form deuterium, a relatively rare isotope of hydrogen with one proton and one neutron apiece in each nucleus.  Other protons became incorporated into helium, the next simplest element, which has a nucleus consisting of two protons and two neutrons.  What I am describing is nuclear fusions, a process which is very well understood.  Protons and neutrons could begin combining together to make composite nuclei only once the temperature had fallen enough so that the newly minted nuclei would not immediately be fragmented again by the intense heat.  The window of opportunity for nuclear fusion was limited, however, opening up at 100 seconds or so and closing again after only a few minutes.  Once the temperature dropped below about a hundred million degrees, fusion ground to a halt because the protons lacked the energy to overcome their mutual electrical repulsion.”

Apparently scientists can also calculate how much helium was made and how many protons were left over to make hydrogen and the answer is three hydrogen atoms to every helium atom and nothing else except a tiny amount of deuterium and lithium. The ratio is apparently confirmed by astronomical observations since every chemical element, in the light they emit, have a spectral ‘barcode’ by which they are identified.

So, we know that the universe is made mostly of hydrogen and helium in a 3 to 1 ratio and helium is a relic of the first minutes of the big bang.  

The processes of the big bang have been tested and confirmed in high energy physics experiments in atom colliders such as Brookhaven National Laboratories. Scientists there can see what happened at the point the universe was “squeezed into a volume of space no larger the solar system, with temperature almost a million times hotter than the center of the sun.  It turns out that under these extreme conditions even protons and neutrons cannot exist as discrete entities.  Instead, they were melded into an amorphous cocktail of subnuclear fragments.” But still, I ask, where did those subnuclear fragments come from and what can they tell us? There is an alternative idea that tries to suss out this problem:

Quantized Elementary Alternatives 

The quantum theory of the elementary alternative was formulated by German physicist and philosopher Carl Friedrich von Weizsäcker in a series of papers entitled Komplementarität und Logik (Complementarity and Logic) I-III between 1955 and 1958. Weizsäcker calls the elementary alternative ‘das Ur’ (pronounced more like ‘poor’ than ‘pure’), after the German prefix ur-, denoting something like primitive or primordial (compare: Ursuppe, the primordial soup, or Urknall, the primordial bang, or big bang). Hence, the theory of the elementary alternative is known as ur theory, which doesn’t do its googleability any favors.

Weizsäcker’s starting point thus is basic logic—how we should reason about the things in the world. Complementarity, then, is the central phenomenon of quantum theory that entails the necessity of formulating the description of a system in terms that are both mutually exclusive and jointly necessary (as in wave/particle duality; see the previous discussion here). As Weizsäcker argues, this should be a fundamental building block of the logic used to reason about and construct scientific theories. But this itself constrains the theories that can be built, in surprising and illuminating ways.

Weizsäcker’s outlook is, thus, at first brush broadly Kantian: there are certain concepts that we may consider ‘innate’, that dictate the form of our experience of the world. Kant considered, e. g., space and time to be among these; hence, no non-spatial experience is possible, or even imaginable.

This is a break with the atomist tradition. Rather than simply being at the receiving end of unbiased data emanating from the world, the observer in this picture mediates the data through the process of observation—thus, the sorts of theories that can be built do not describe unvarnished reality, but the experience of an observer in the world. The idea of an observer-less world is immediately nonsensical, as the notion of ‘world’ carries that of the ‘observer’ with it.

From there, Weizsäcker proposes to build a theory of physics, taking as its point of origin nothing but the ur theory, that is, the quantum theory of the elementary alternative—the qubit, in modern parlance. In this way, he proposed an information-theoretic grounding for physics three decades before Wheeler ever coined the famous slogan ‘It from Bit’.

Getting back to Davies: notice that he wrote that the universe was “squeezed into a volume of space no larger the solar system, with temperature almost a million times hotter than the center of the sun.” Our solar system is pretty darn big relative to our planet and us.  Voyager 1 has been traveling for more than 40 years and still has not escaped the influence of our sun at almost 14 billion miles out.  So that ‘primordial atom thingy’ was really huge.  Was it flat like a pancake or round like a ball? What was it? How did it come into being?

Whatever it was, apparently the science tells us that the universe doubled in size between 1 and 2 microseconds (a millionth of a second), but by one second, the expansion rate had dropped to a trillionth of what it was at one microsecond.  The apparent reason for this rapid slow-down was gravitation. The attraction between all forms of matter put the brakes on especially because of the extraordinarily compressed state of matter at the time, i.e. that giant, solar-system sized ‘primal atom’.  Notice that we are talking about matter before matter was supposed to exist.  It was “an amorphous cocktail of subnuclear fragments” that we don’t know anything about.

Davies provides a graph of the rate of expansion of the universe that resembles the curved line designated ‘open’ in the graph below:


The caption beneath Davies’ single line graph says: “How the size of the universe should increase with time according to the general theory of relativity.  It starts out expanding explosively fast at the big bang origin, but progressively slows as the attractive force of gravitation acts like a brake.”  Obviously, there is some discussion about whether the universe is open or not nowadays. 

·       Open universe: One that continues to expand. Gravity slows the rate of expansion but is not strong enough to stop it.

·       Closed universe: One that will eventually collapse back on itself. This would result in a BIG CRUNCH which is the reverse of the Big Bang.

·       Flat universe: The force of gravity keeps slowing down the expansion but theoretically, it'll take an infinite amount of time for it to come to rest.

Research in this area is ongoing and much is not well understood, so keep that in mind.  In 1997, cosmologists determined that the universe appears to be more open  than expected.  They concluded that there must be some other previously unknown force, acting in opposition to gravity, which is pushing the universe apart. This was designated ‘Dark Energy’.

In any event, it appears that the rate of expansion vs deceleration played a very important role in the physical processes taking place at a given time and this was extremely important for the creation of the atoms that are necessary to life. So it appears as though this whole process was ‘controlled’ in some way so as to definitely result in a life-friendly environment. As Davies writes:

“Our universe has picked a happy compromise: it expands slowly enough to permit galaxies, stars and planets to form, but not so slowly as to risk rapid collapse.  … Explosions are normally rather messy affairs. If the big bang has been slightly uneven, so that the expansion rate in one direction outstripped that in another, then over time the universe would have grown more and more lopsided as the faster galaxies receded.  We don’t see that.  Evidently the big bang had exactly the same vigour in all directions, and in all regions of space, tuned to very high precision.  How has the entire cosmos cooperated to achieve this?”  

Enter theoretical physicist Alan Guth.  Guth’s idea was ‘inflation’ as opposed to ‘expansion.’  According to Guth, the traditional big bang didn’t need to be uniform or orchestrated, it could be as messy as any other explosion.  Then, the universe almost immediately jumped in size by a huge factor.  An analogy would be something that jumps from the size of a proton to the size of a grapefruit virtually instantaneously.  At that point, the rapid ‘inflation’ stopped and normal ‘expansion’ took over as according to the given story of the early universe as already described.  This almost instantaneous inflation has the effect of smoothing the universe the same way blowing up a balloon gets rid of any wrinkles.  


Guth’s idea also included that inflating space in this way made it less curved; inflated enough and it is indistinguishable from flat. Et voila!  Inflation explains uniformity and the apparent flat geometry of space! 


Now, I don’t know about you, but this instantaneous ginormous expansion smacks of the paranormal to me.  You know, cases where objects sort of just materialize out of nowhere and are just suddenly there. But, whatever floats your boat.  Davies acknowledges this:

“Guth’s inflation seems little more than a magic wand.  It would have fallen on deaf ears had Guth not provided a credible physical mechanism to explain how inflation might have occurred… The gravitational pull of the universe serves to diminish the expansion rate progressively.  Inflation does just the opposite: it is a brief episode in which the expansion rate accelerates hugely, causing the universe to swell up super-fast.  Guth proposed that a type of antigravity force was responsible.”  

Conveniently, anti-gravity is built into Einstein’s general theory of relativity.  But where does it come from? Guth proposed a scalar field and he called this hypothetical entity the ‘inflation field.’

(Wikipedia: In affine geometry, uniform scaling (or isotropic scaling) is a linear transformation that enlarges (increases) or shrinks (diminishes) objects by a scale factor that is the same in all directions. The result of uniform scaling is similar (in the geometric sense) to the original. A scale factor of 1 is normally allowed, so that congruent shapes are also classed as similar. Uniform scaling happens, for example, when enlarging or reducing a photograph, or when creating a scale model of a building, car, airplane, etc.)


Back to Davies’ explanation:

“In Newton’s theory, gravitation is generated by mass.  In Einstein’s general theory of relativity, mass is also a source of gravitation, as is energy (remember that Einstein’s equation E = mc2 tells us that energy has mass).  But it doesn’t stop there.  Pressure too is a source of gravitation in the general theory of relativity. …if the pressure gets seriously big, it can rival the energy in its gravitating power. ‘Seriously big’ here means the sort of pressure found inside a collapsing star … Another example, however, is a scalar field: it has a pressure comparable to its energy. …But why does the scalar field produce anti-gravity?  The crucial factor is the pressure: for a scalar field it is negative.  Negative pressure isn’t especially exotic: it is no more than what we normally call tension – a stretched elastic band provides a familiar example.  In three dimensions, a block of rubber pulled in all directions would have negative pressure.  Now negative pressure implies negative gravitation – a repulsive, antigravity force.  So a scalar field generates gravity by virtue of its energy, but antigravity by virtue of its (negative) pressure.  A calculation shows that the antigravity beats the gravity by a factor of three, so the net effect of the scalar field is to antigravitate.”

So it was: Guth theorized that during the first instant after the birth of the universe a scalar field permeated space exerting a powerful antigravity effect which induced the universe to leap into runaway expansion. (What manifested this scalar field? How did it come into being?) This antigravity effect had to be strong enough to overpower the incredible gravity of the ‘normal matter in the universe,’ i.e. the solar system sized primal atom.  He plugged in some numbers and discovered that the antigravity would not only easily overwhelm the universe, it would be so strong that the universe would double in sized every 1014 seconds. 

The only problem is: what stopped this almost unthinkable expansion?  Guth had an answer for that: the inflation field was inherently unstable and only existed for a brief time.  It just decayed and disappeared, more or less.  Poof! And once it disappeared, then the big bang proceeded according to the Standard Model. Well, more or less.  According to Guth, the energy stored in the inflation field became heat and it was this heat that created protons and electrons and all the 1050 tons of matter in the universe.  Afterward, with the field decayed, the CMB represents the remnants of the inflation field.

In any event, Guth’s theory had a flaw: the exit from inflation. Note he thought it was just ‘inherently unstable’, but the decay of the inflation field is a quantum process and thus is subject to the usual unpredictability of quantum fluctuations.  Davies writes:

“As a result, it would decay at different times in different places, in the form of randomly distributed bubbles – bubbles of space, that is, in which the inflation field had decayed surrounded by regions of space where it had not.  The energy given up by the decayed inflation field would be concentrated in the bubble walls.  Bubble collisions would release this energy, as heat, but the process would be utterly chaotic and generate as much inhomogeneity as inflation was designed to remove.  … The solution was to find a theoretical scheme that would avoid bubble collisions and enable the bubbles to grow to a size much larger than the observable universe.  One way to do this is called eternal inflation.”

One thing to notice here: by its very nature, inflation erases the record of what went before and makes it impossible to deal with the question: What caused the Big Bang and what was before it?  Inflation may help to explain the fundamental features of the universe, describing them as purely physical processes, but it appears to prevent penetrating beyond that.

I don’t care much about the fancy mathematical/terminological footwork going on here, what he is describing still amounts to manifesting something out of nothing or something moving between dimensions and suddenly appearing as an apport.  Notice also that nobody has yet observed a scalar field, according to Davies.

We live in a universe that doesn’t just allow life, it appears to promote it.  If any one of a goodly number of physical properties of our universe were other than they are, life would be impossible.  And so, next time I will continue to probe into these problems and look at the solutions and explanations that have been offered.  

The Spin Chronicles (Part 13): Norms, Spinors, and Why Mathematicians Need Better Nature Walks

 Welcome back to The Spin Chronicles ! If you’ve been following along (and if you haven’t, shame on you—catch up on Part 12 Geometry, Kant, ...