Dear Paul,

This seems to be an interesting account of the relation between entanglement and time, not forgetting information, and they are only two essays dealing explicitely about entanglement. I intend to study it in a week from now because I am too busy before.

Meanwhile, you may be interested with my own writings

http://fqxi.org/community/forum/topic/1789

where non-locality and contextuality are given a graph theoretical and algebraic interpretation.

Best regards,

Michel

    Hi Paul,

    Nice essay but I have to read a second time to fully grasp your ideas. Meanwhile...

    As the contest in Wheeler's honor draws to a close, leaving for the moment considerations of rating and prize money, and knowing we cannot all agree on whether 'it' comes from 'bit' or otherwise or even what 'it' and 'bit' mean, and as we may not be able to read all essays, though we should try, I pose the following 4 simple questions and will rate you accordingly before July 31 when I will be revisiting your blog.

    "If you wake up one morning and dip your hand in your pocket and 'detect' a million dollars, then on your way back from work, you dip your hand again and find that there is nothing there...

    1) Have you 'elicited' an information in the latter case?

    2) If you did not 'participate' by putting your 'detector' hand in your pocket, can you 'elicit' information?

    3) If the information is provided by the presence of the crisp notes ('its') you found in your pocket, can the absence of the notes, being an 'immaterial source' convey information?

    Finally, leaving for the moment what the terms mean and whether or not they can be discretely expressed in the way spin information is discretely expressed, e.g. by electrons

    4) Can the existence/non-existence of an 'it' be a binary choice, representable by 0 and 1?"

    Answers can be in binary form for brevity, i.e. YES = 1, NO = 0, e.g. 0-1-0-1.

    Best regards,

    Akinbo

      Dear professor Christian Corda:

      Thanks for your nice essay, well done, i enjoy reading it very much

      "a new information-theoretic quality to the nature of an interaction. "

      very impressive!

      could you put it simple the essential of EPR?

      Thanks for your nice essay, i rated it with high mark

      and from a different point view, my essay may interest you

      Bit: from Breaking symmetry of it

      http://fqxi.org/community/forum/topic/1906

      Hope you enjoy it

      Regards,

      Xiong

      5 days later

      Dear Paul,

      I think that there is a basic failure in your essay. You are talking about an entangled system while you should talk about entangled states. At least in the standard meaning entanglement means (entangled) states shared by mutually commuting operators attached to measurement systems. Thus there is no time here.

      There are no entangled systems but systems that possibly manifest entanglement in the sharing of their states. Not all shared states are entangled. If you look at my essay

      http://fqxi.org/community/forum/topic/1789

      there are several examples of mutually commuting operators sharing states without entanglement. They correspond to the lines of the displayed finite geometries (as the Mermin's square in Fig. 3).

      Entanglement is not central in my essay and is not a necessary condition for for Bell's inequality and contextuality.

      It does not mean that your concept of subtime is not interesting but I think that you don't use the the concept of entanglement in an appropriate way.

      Best regards,

      Michel

      Michel - thank you for your comment. I have read your essay (very nice), I will comment on that on your page.

      Entanglement is the term normally given to the "non-classical" phenomenon where joint measurements show correlations stronger than what would be "classically explainable". I recognize that using the term entanglement for this "photon hot potato protocol" would provoke reactions from conventional quantum mechanic's. However unless someone can find a hole in my argument, this protocol in combination with the concept of subtime, would appear to manifest exactly the same results as the purely probabilistic quantum formalism; but now might be considered "explainable" (I hesitate to say classically, because it isn't that either).

      The problem with the entangled (pure state of vectors) in the Hilbert space, is that entanglement is seen as only one thing: the impossibility of writing a density matrix as a linear combination of tensor products.

      The reason this essay is completely devoid of mathematical formalism, is because I wanted to begin with a describable phenomenon, and not with an argument over current formalisms. I plan to follow up this paper with a fully mathematical description, but I wanted people to read and understand this description first in order to pave the way to a new understanding.

      There are two basic issues with the existing formalism. The first theoretical, that it appears to be incomplete without including a backwards evolving quantum state [1]. The second is experimental, that it appears to be a classic example of the independence fallacy [2].

      I am also willing to be held accountable by experiment. At least all the Bell tests so far would appear to be consistent with this description. I am hoping to engage the scientific community in this debate, which I see not as theory vs experiment, but as a constructive interaction between the two.

      Additional References:

      [1] Lev Vaidman argues that the Two State Vector Formalism (TSVF) needs to consider backwards evolving quantum state because information provided by a "forwards only" state is not complete. Both past and future measurements are required for providing complete information about quantum systems. [Ref: http://www.pirsa.org/08090067/]

      [2] Ken Wharton "Reality, No Matter How You Slice It" http://fqxi.org/community/forum/topic/1846

      Akinbo - thank you for your message. I think you will find the answers to your questions in my essay, and the essay by Ken Wharton on this site [link:fqxi.org/community/forum/topic/1846]

      Kind regards, Paul

      Yutaka - allow me to be more specific:

      Entanglement is the term normally given to the "non-classical" phenomenon where joint measurements show correlations stronger than what would be "classically explainable". I recognize that using the term entanglement for this "photon hot potato" protocol might provoke reactions from mainstay quantum mechanic's. Unless someone can find a hole in my argument, this protocol in combination with the concept of subtime, would appear to manifest exactly the same results as the purely probabilistic quantum formalism; but might now be considered "explainable" (I hesitate to say classically, because it isn't that either).

      The conventional formalism for entanglement says that two distantly separated quantum systems may be "coupled" via Hilbert space, such that measurement of one can suddenly change the state of the other. I have simply tried to describe an insight as to what form that "coupling" might take.

      The difficulty with the entangled (pure state of vectors) in the Hilbert space, is that entanglement is seen as only one thing: the impossibility of writing a density matrix as a linear combination of tensor products. There are two basic issues with this. The first theoretical: it appears to be incomplete without including (at least) a backwards evolving quantum state [1]. The second is experimental: it appears to be a classic example of the independence fallacy [2].

      This is the biggest reason the essay is completely devoid of mathematical formalism: I wanted to begin with a describable phenomenon, and not with an endless argument over the current formalisms before we can get to the real issues.

      However, I am willing to be educated by those with more knowledge than me in this area. I am also willing to be tested by experiment: all of the Bell tests so far have outcomes that appear to be consistent with this new description, and I have proposed experiments which could lead to further insight.

      [1] Lev Vaidman argues that the Two State Vector Formalism needs to consider backwards evolving quantum state because information provided by a "forwards only" state is not complete. Both past and future measurements are required for providing complete information about quantum systems. [ http://www.pirsa.org/08090067/]

      [2] Ken Wharton "Reality, No Matter How You Slice It". [link:fqxi.org/community/forum/topic/1846]

      Dear Paul,

      You have offered impressively review/analytical work, written in honest polemical style. It is interesting to follow of your attractive judgements. However, let me see that for study and proper examination of such content good time is required, and a certain acquaintance also with the touched basic problems. I saw it is difficult to start serious discussion within possible time frame and in the actual situation. Thus, let me just say that your work seems to me as deserving to a ,,high,, rating - that I do. Please you find short time to read my work Es text . It is written as per possible in readable form, in my view. (The confirmations and quantitatively reasons/argumentations are possible to find from references, after of this battle, of course!) I hope you will find some communication of it with the you're examined questions. I hope you will visit my forum!

      Regards,

      George

        Dear Paul,

        I couldn't actually discern answers to my questions above from the essay being an amateur physicist. However, I discern that from the quantum physics perspective a good effort to provide answers to the contest's question.

        As a professional physicist, kindly indulge me one last question for my clarification: Is it being implied by the relational view of space and as suggested by Mach's principle that what decides whether a centrifugal force would act between two bodies in *constant relation*, would not be the bodies themselves, since they are at fixed distance to each other, nor the space in which they are located since it is a nothing, but by a distant sub-atomic particle light-years away in one of the fixed stars in whose reference frame the *constantly related* bodies are in circular motion?

        You can reply me here or on my blog. And please pardon my naive view of physics.

        Accept my best regards,

        Akinbo

          George - thank you for your kind words and high rating. There is a large volume of papers in this contest, and I am hoping to get through all of them. I have your paper printed out and will hopefully get to it before the deadline on the contest and will respond on your page.

          Kind regards, Paul

          Jenny - thank you for your comments. Two kinds of time indeed, and each of them has different notions of infinity Tc (+/- on the real line) is the classical way we use time in our equations, however, the "ts" insight creates a different kind of meaning for eternity - in this case an eternal recurrence that has no beginning or end. Of course, this is still independent of the movement of matter through space as entangled clumps living a separate eternal existence, and the "external" reality of bumping into other entangled clumps, and decohering, perhaps into a larger entangled clump, or splitting into yet more fragments of clumps.

          I will make sure to read your paper in detail and learn what you mean by quantanglement.

          Kind regards, Paul

          Dear Paul

          Richard Feynman in his Nobel Acceptance Speech

          (http://www.nobelprize.org/nobel_prizes/physics/laureates/1965/feynman-lecture.html)

          said: "It always seems odd to me that the fundamental laws of physics, when discovered, can appear in so many different forms that are not apparently identical at first, but with a little mathematical fiddling you can show the relationship. And example of this is the Schrodinger equation and the Heisenberg formulation of quantum mechanics. I don't know why that is - it remains a mystery, but it was something I learned from experience. There is always another way to say the same thing that doesn't look at all like the way you said it before. I don't know what the reason for this is. I think it is somehow a representation of the simplicity of nature."

          I too believe in the simplicity of nature, and I am glad that Richard Feynman, a Nobel-winning famous physicist, also believe in the same thing I do, but I had come to my belief long before I knew about that particular statement.

          The belief that "Nature is simple" is however being expressed differently in my essay "Analogical Engine" linked to http://fqxi.org/community/forum/topic/1865 .

          Specifically though, I said "Planck constant is the Mother of All Dualities" and I put it schematically as: wave-particle ~ quantum-classical ~ gene-protein ~ analogy- reasoning ~ linear-nonlinear ~ connected-notconnected ~ computable-notcomputable ~ mind-body ~ Bit-It ~ variation-selection ~ freedom-determinism ... and so on.

          Taken two at a time, it can be read as "what quantum is to classical" is similar to (~) "what wave is to particle." You can choose any two from among the multitudes that can be found in our discourses.

          I could have put Schrodinger wave ontology-Heisenberg particle ontology duality in the list had it comes to my mind!

          Since "Nature is Analogical", we are free to probe nature in so many different ways. And each of us surely must have touched some corners of it.

          Good luck and good cheers!

          Than Tin

            Dear Paul,

            I just found your reply. Thank you . I should read your interesting essay another time. I like your quote about Lev Vaidman "Both past and future measurements. In the contextual approach, one does not distinguish past or future measurements; one looks at compatible measurements.

            I hope that you will find my essay attractive and I will be available for your remarks.

            Have a good WE.

            Best wishes,

            Michel

            Dear Paul,

            World contests FQXi - it contests new fundamental ideas, new deep meanings and new concepts. In your essay deep original analysis in the basic strategy of Descartes's method of doubt, given new ideas and conclusions.

            Constructive ways to the truth may be different.

            One of them said Alexander Zenkin in the article "Science counter-revolution in mathematics": «The truth should be drawn with the help of the cognitive computer visualization technology and should be presented to" an unlimited circle "of spectators in the form of color-musical cognitive images of its immanent essence.»

            Http :/ / www.ccas. ru/alexzen/papers/ng-02/contr_rev.htm

            Do you agree with Alexander Zenkin?

            I give the highest rating for a very original and radical ideas.

            Please look also my essay.

            I wish you success,

            Vladimir

              Dear Paul,

              Finally got to your paper - so many in such short amount of time. I like anything that contains EPR and your approach is original. I like how you have treated time and the description of photons as dark makes perfect sense! Also nice to see Turing mentioned.

              I thought your essay was interesting and relevant. I'm not sure whether you'll like my different approach, but if you do get chance, please take a look.

              Well done & best wishes,

              Antony

                Dear Paul Borrill,

                I came to your essay because of a comment you made on Daryl Janzen's essay. I also like your reference in a comment above to "Brian Swingle's Essay last year on The Illusion of Hilbert Space". I thought that was an exceptionally good essay, and said so last year.

                Your essay is daring and provocative, and full of ideas, such as time not existing until change occurs: "when nothing changes, time stands still." [and] "it is impossible to 'count' the number of recurrences within [a] state [of reversible change.]"

                Of particular interest is "even behaviors that have... happened, can (at least locally) unhappen...".

                I like your figure 4 of the entanglement net. But I'm confused about the limits of this view. I can see that such may hold in a crystal, say, but if an atom in a star emits a photon, which 1 billion years later is absorbed by my eye, this clearly is not recurring. So where is the 'boundary' and what is the distribution law governing these occurrences? I agree that it was reasonable of you not to include math in this essay but do you have answers to this question?

                By the way, I also liked "if time (change) happens, we remember: if it happens and then the information reverses its path, we don't."

                In short, you have more fascinating ideas in your essay than most do. I need to reread it, perhaps several times, to try to absorb the complete scheme [and look for holes in it.] It is usually easy to dismiss far out schemes, but your Catch-22, that "we don't remember the (reversed) occurrences" is a tough one to counter, right off the bat. I'll need to think about it more.

                I invite you to read and comment on my essay, which I hope will introduce you to some new and stimulating ideas. I don't [yet] buy your ideas, but I rate you highly on originality and presentation. You present an idea I would normally dismiss so well that I need to think more about it. Congratulations.

                Best regards,

                Edwin Eugene Klingman

                  A post was made on this site by Basudeba Mishra when I woke up this morning. I prepared a response, but now find that the comment is missing. This posting is in response to Basudeba's original comments from earlier today.

                  Paragraph 1:

                  We have replied to you in our thread. Before we comment on your essay, we must clarify that we do not assume or consider anything or any theory as given. We examine everything from empirical perspective using precise definitions. Thus, our views are usually different from others. We are confused after reading your essay. Kindly spare some time to clarify it to us.

                  A1 Dear Basudeba - I no longer see my comments or your reply on your page. Thank you for your time in reviewing and responding to my essay. I am sorry to hear that you were confused after reading it. I appreciate that new ideas can seem absurd at first and that precise definitions can be difficult in the English language. I will attempt to respond to your comments by paragraph number:

                  Paragraph 2:

                  In the statistical method, observation remains non-deterministic because it is not related to individual measurements, but only to the minimal and maximal boundary conditions like the position of an electron in orbit around nucleus. You cannot apply this idea to "reality is timeless inside entangled systems, i.e., it continually evolves and cycles through its recurrence, defined by the available number of states", because your description shows sequence, which is used to perceive time. Unlike mass, space and time have no physical existence. We designate the interval between objects as time and that of events as time. Since they do not have physical reality, we designate them through alternative symbolism of objects and events, which are different from space and time or spacetime. Thus, the concept of sub-time is absurd, though reversible information exchange is frequently used. The velocity of photon is neither smooth, nor monotonic or irreversible background in time.

                  A2 My essay begins with a description of entanglement as a Poynting/Shannon relationship between two atoms, not within one. Instead of a universal background for time, I make a distinction between subtime (ts) which is reversible in all ontological respects, and classical time (Tc), which "appears" to exhibit monotonic and irreversible order at large scale according to Maccone [7]. I see many statements of opinion in your writing which makes it difficult for me to discern questions and formulate a response, so I will confine my responses only to actual questions in the remaining paragraphs. Also, your restatement of my words in the last sentence of this paragraph confuses me too. Could you please quote the precise sentences from my essay? And specify a contextual question - for example, when you mention "time" are you referring to ts or Tc? That way we can both be more precise and spare our audience further confusion.

                  Paragraph 3:

                  How do you assume "information is associated with the propagation of a photon?" Information is not data that is transmitted. Information is specific data reporting the state of something based on observation (measurements), organized and summarized for a purpose within a context that gives it meaning and relevance and can lead to either an increase in understanding or decrease in uncertainty. Perception is the processing of the result of measurements of different but related fields of something with some stored data to convey a combined form "it is like that", where "it" refers to an object (constituted of bits) and "that" refers to a concept signified by the object (self-contained representation).

                  A3 It is a well established in science that information is associated with photon propagation. See for example, Neil Gershenfeld's excellent book [1] or the references cited in my essay [2,3,4,5,6] (citations appear at the bottom of this posting).

                  Paragraph 4:

                  Similarly, how do you "postulate sub-time is inextricably intertwined with space along the one-dimensional path defined by the photon traversal between emitter and absorber atoms?" Transverse waves are always characterized by particle motion being perpendicular to the wave motion. This implies the existence of a three dimensional medium through which the two dimensional reference wave travels and with respect to which the transverse wave travels in a perpendicular direction. In the absence of the reference wave, which is a longitudinal wave, the transverse wave can not be characterized as such. All transverse waves are background invariant by its very definition. All motions take place in space and time. Thus, how do you "dispense entirely with the notion that a background of time exists, along with any sense of future or past, between isolated entangled systems?" After all, the two waves are entangled.

                  A4 I believe the answer to your question is in the dictionary definition of a postulate. I state this as a premise to my argument and follow it with a logical and diagrammatic argument, concluding with implications should the postulate be true and the argument impeccable. This is to honor individuals in this community who are not mathematical virtuosos; and for those who are, to illuminate issues regarding assumptions (such as a background for time) hidden in the conventional formalisms. I am far from alone in this concern. Lee Smolin in particular has been a legendary figure in exposing many deep issues in modern physics. I dispense entirely with the notion of a background of time in exactly the same way that we dispensed with the luminiferous aether: as a superfluous assumption no longer needed to explain the workings of the universe.

                  Paragraph 5:

                  Photon exchange indicates the change in direction of the application of energy. Consider an example: A + B → C + D. Here a force makes A interact with B to produce C and D. The same force doesn't act on C and D as they don't exist at that stage. If we change the direction of the force, B acts on A. Here only the direction of force and not the interval between the states before and after application of force (time) will change and the equation will be: B + A → C + D and not B + A ← C + D. Hence it does not affect causality. There can be no negative direction for time or cause and effect. You also subscribe to this view later in your essay while talking about entanglement. Only there you start a reverse cycle with C and D in place of A and B. Then how do you claim "Only when the entangled system decoheres into the environment of other entangled systems (through the exchange of photons) does time emerge as progressively irreversible, providing persistent evolution of information at the macroscopic scale"?

                  A5 I do not quite see the relevance of your example. My essay is about "Information, Entanglement and Time", not forces. I would be happy to engage in a discussion regarding forces in a different forum (your web page perhaps?) so that our audience are not taken off track regarding the essential properties of photon entanglement in this forum. As far as your last question is concerned, please refer to the excellent answer to this question in [7] and [8].

                  Paragraph 6:

                  The result of measurement is always related to a time t, and is frozen for use at later times t', t'', etc, when the object has evolved further. All other unknown states are combined together and are called superposition of states. Hence there is an uncertainty inherent in it, which Shannon calls entropy. Indiscernibility such as the difference of time in the observation of an object, its description through a language and the perception of the object as described by that language can sometimes be designated as a superposition of states. Entanglement of quantum states of composite systems of two or more atoms cannot be a consequence of the principle of superposition. Contrary to the descriptions of EPR, entanglement does not physically last over long distances. Entanglement always indicates confinement, which means they are in a well defined boundary or state. Hence it cannot be a superposition. Further, since they are continuously changing their states ('a state of reversible change' - as you put it), which are 'events', it happens in the background of time (interval between events).

                  A6 Please, Sir. The whole point of my essay is that there is no t, t' or t'' (a classical/background view of time). If you can relate the question to ts, or Tc, then I think we might begin communicating fruitfully. I cannot prove a negative - that a background of time does not exist - only that it is not necessary, like the luminiferous aether, to explain how the universe works. I will leave the remaining statements in the paragraph above to be judged by other readers relative to verifiable experimental science.

                  Paragraph 7:

                  Can you show us something that does not change at all? Everything is made up of elementary particles and fundamental energies, which always change their state. How can time stand still? Time may stand still only outside the Universes, which cannot be perceived at all. We measure analog time by observing some fairly repetitive (cyclic) and easily intelligible events and taking it as the scaling constant (unit). Generally we use the duration of the day or year, which are natural units and subdivide it to get the duration of second. Even atomic clocks, which define a second as the duration of 9192631770 cycles of radiation corresponding to the transition between two energy levels of the caesium-133 atom, retain the natural duration by averaging many readings of the cesium clocks in GPS, as they are individually not accurate. While the analog time is smooth and monotonous, the digitized time, when used to measure the intervals of events, is not so.

                  A7 Subtime describes precisely something that (after each recurrence) does indeed "not change at all". The point is this: you can have a process that repeats indefinitely in subtime (ts) but will appear "frozen" because it is uncountable in classical time (Tc).

                  Paragraph 8:

                  The rest of your essay is extension of these ideas and other's ideas with pictorial representation. Hence we are not commenting on those.

                  A8 I took the time to read your whole essay through from beginning to end twice before I commented on it. I would appreciate the courtesy of reading mine through to the end just once. I believe you will find that many of your questions are more fully covered in the essay, and that you will find many aspects later in the essay perhaps more agreeable to you because they coincide with some of your own insights into nature, for example in the strange nature of atomic clocks.

                  Kind regards, Paul

                  References:

                  [1] Gershenfeld, Neil. The Physics of Information Technology. Cambridge, New York: Cambridge University Press, 2000.

                  [2] 聽J. P. Torres, Gabriel Molina-Terriza, and Lluis Torner, "Twisted photons: new classical and quantum applica- tions", 2005, vol. 5958, SPIE Publications.

                  [3] 聽G. Molina-Terriza, Juan P. Torres, and Lluis Torner, "Twisted photons", Nature Physics, vol. 3, no. 5, pp. 305-310, May 2007.

                  [4] 聽J. P Torres and Lluis Torner, Twisted Photons: Appli- cations of Light with Orbital Angular Momentum, Wiley- VCH, Weinheim, Germany, 2011.

                  [5] 聽A. Afanasev, Carl E. Carlson, and Asmita Mukher- jee, "Excitation of an atom by twisted photons", arXiv e-print quant-ph/1304.0115, George Washington University, Mar. 2013.

                  [6] 聽J. Bahrdt, K. Holldack, P. Kuske, R. Mller, M. Scheer, and P. Schmid, "First observation of photons carrying orbital angular momentum in undulator radiation", Physical Review Letters, vol ?. Accepted for Publication, no. -, pp. -, June 2013.

                  [7] L. Maccone, "Quantum solution to the arrow-of- time dilemma", Physical Review Letters, vol. 1

                  The reference list in the above post was not uploaded correctly. Here it is:

                  References:

                  [1] Gershenfeld, Neil. The Physics of Information Technology. Cambridge, New York: Cambridge University Press, 2000.

                  [2] 聽J. P. Torres, Gabriel Molina-Terriza, and Lluis Torner, "Twisted photons: new classical and quantum applications", 2005, vol. 5958, SPIE Publications.

                  [3] 聽G. Molina-Terriza, Juan P. Torres, and Lluis Torner, "Twisted photons", Nature Physics, vol. 3, no. 5, pp. 305-310, May 2007.

                  [4] 聽J. P Torres and Lluis Torner, Twisted Photons: Applications of Light with Orbital Angular Momentum, Wiley- VCH, Weinheim, Germany, 2011.

                  [5] 聽A. Afanasev, Carl E. Carlson, and Asmita Mukherjee, "Excitation of an atom by twisted photons", arXiv e-print quant-ph/1304.0115, George Washington University, Mar. 2013.

                  [6] 聽J. Bahrdt, K. Holldack, P. Kuske, R. Mller, M. Scheer, and P. Schmid, "First observation of photons carrying orbital angular momentum in undulator radiation", Physical Review Letters, vol -, no. -, pp. -, Accepted for Publication June 2013.

                  [7] L. Maccone, "Quantum solution to the arrow-of- time dilemma", Physical Review Letters, vol. 103, no. 8, 2009.

                  [8] M. Schlosshauer, Annals of Physics 321, 112 (2006).

                  .

                  Dear Sir,

                  We have replied to you in our thread. Before we comment on your essay, we must clarify that we do not assume or consider anything or any theory as given. We examine everything from empirical perspective using precise definitions. Thus, our views are usually different from others. We are confused after reading your essay. Kindly spare some time to clarify it to us.

                  In the statistical method, observation remains non-deterministic because it is not related to individual measurements, but only to the minimal and maximal boundary conditions like the position of an electron in orbit around nucleus. You cannot apply this idea to "reality is timeless inside entangled systems, i.e., it continually evolves and cycles through its recurrence, defined by the available number of states", because your description shows sequence, which is used to perceive time. Unlike mass, space and time have no physical existence. We designate the interval between objects as time and that of events as time. Since they do not have physical reality, we designate them through alternative symbolism of objects and events, which are different from space and time or spacetime. Thus, the concept of sub-time is absurd, though reversible information exchange is frequently used. The velocity of photon is neither smooth, nor monotonic or irreversible background in time.

                  How do you assume "information is associated with the propagation of a photon?" Information is not data that is transmitted. Information is specific data reporting the state of something based on observation (measurements), organized and summarized for a purpose within a context that gives it meaning and relevance and can lead to either an increase in understanding or decrease in uncertainty. Perception is the processing of the result of measurements of different but related fields of something with some stored data to convey a combined form "it is like that", where "it" refers to an object (constituted of bits) and "that" refers to a concept signified by the object (self-contained representation).

                  Similarly, how do you "postulate sub-time is inextricably intertwined with space along the one-dimensional path defined by the photon traversal between emitter and absorber atoms?" Transverse waves are always characterized by particle motion being perpendicular to the wave motion. This implies the existence of a three dimensional medium through which the two dimensional reference wave travels and with respect to which the transverse wave travels in a perpendicular direction. In the absence of the reference wave, which is a longitudinal wave, the transverse wave can not be characterized as such. All transverse waves are background invariant by its very definition. All motions take place in space and time. Thus, how do you "dispense entirely with the notion that a background of time exists, along with any sense of future or past, between isolated entangled systems?" After all, the two waves are entangled.

                  Photon exchange indicates the change in direction of the application of energy. Consider an example: A B → C D. Here a force makes A interact with B to produce C and D. The same force doesn't act on C and D as they don't exist at that stage. If we change the direction of the force, B acts on A. Here only the direction of force and not the interval between the states before and after application of force (time) will change and the equation will be: B A → C D and not B A ← C D. Hence it does not affect causality. There can be no negative direction for time or cause and effect. You also subscribe to this view later in your essay while talking about entanglement. Only there you start a reverse cycle with C and D in place of A and B. Then how do you claim "Only when the entangled system decoheres into the environment of other entangled systems (through the exchange of photons) does time emerge as progressively irreversible, providing persistent evolution of information at the macroscopic scale"?

                  The result of measurement is always related to a time t, and is frozen for use at later times t', t'', etc, when the object has evolved further. All other unknown states are combined together and are called superposition of states. Hence there is an uncertainty inherent in it, which Shannon calls entropy. Indiscernibility such as the difference of time in the observation of an object, its description through a language and the perception of the object as described by that language can sometimes be designated as a superposition of states. Entanglement of quantum states of composite systems of two or more atoms cannot be a consequence of the principle of superposition. Contrary to the descriptions of EPR, entanglement does not physically last over long distances. Entanglement always indicates confinement, which means they are in a well defined boundary or state. Hence it cannot be a superposition. Further, since they are continuously changing their states ('a state of reversible change' - as you put it), which are 'events', it happens in the background of time (interval between events).

                  Can you show us something that does not change at all? Everything is made up of elementary particles and fundamental energies, which always change their state. How can time stand still? Time may stand still only outside the Universes, which cannot be perceived at all. We measure analog time by observing some fairly repetitive (cyclic) and easily intelligible events and taking it as the scaling constant (unit). Generally we use the duration of the day or year, which are natural units and subdivide it to get the duration of second. Even atomic clocks, which define a second as the duration of 9192631770 cycles of radiation corresponding to the transition between two energy levels of the caesium-133 atom, retain the natural duration by averaging many readings of the cesium clocks in GPS, as they are individually not accurate. While the analog time is smooth and monotonous, the digitized time, when used to measure the intervals of events, is not so.

                  (Further). We are also surprised to see these deleted. However, we are publishing it again. The following was posted to our thread:

                  "Thank you for your comments. We apologize for our clumsy presentation, because we do not subscribe to reductionism. We start from the creation event and come down to explain everything from a common source unlike others, who do the opposite. Thus, to others, our paper may seem like jumbled up. Space constraint also forced us to squeeze. We did not give any reference because there is no scientific paper in our knowledge, which talks about these issues from the same perspective. For example, several persons have questioned time dilation. But our views are distinctly different from others. It contained in a book written by us on 30-06-2005. But it is much more clumsy.

                  After your post we read the paper of Dr. Bakhoum, E. G. He says: 'the process of "observing" a photon necessarily means its destruction, and hence the "observation" of the event will be carried out in the moving frame S' only'. In our essay, we do not accept that the process of observation affects reality. In fact, in one of the threads here, we had quoted from a ninth century book to refute it. In some other threads we have explained the GPS result as due to changing refractive index of the Earth's atmosphere and the outer space. Regarding photon, we have explained in our essay that it is the motion of the intersection of the electric field and the magnetic field. Thus, it is ever changing. In open space, it must have the maximum velocity.

                  Similarly, Dr. Bakhoum, E. G. says: "muons traveling with a velocity v ≈ c are observed to survive longer than muons that travel with velocities that are much less than c". We explain it by pointing out to the cause of such slower motion. It must be the changing refractive index due to differential density of the medium. This would generate higher friction, so that the muon dies down early. "

                  Regarding your latest post, this is our view:

                  A.2. Before talking about sub-time or classical time, you must define time and justify its divisions into sub-time or classical time. We have defined time precisely and hold that there cannot be anything like sub-time or classical time.

                  A.3. Photon propagation is the mechanism for transmission of signals. It has to be received, stored and interpreted to be information. Information is the cognitive content and not mechanical process.

                  A.4. We are pointing out the defects in your postulate, which makes it self-contradictory. We have said earlier that we do not accept anything or any view of any one unless we verify it empirically. Hence kindly modify your reply to answer to the issues raised by us.

                  A.5. We have questioned your statement by giving the example that entanglement does not decohere into the environment of other entangled systems, and time and causality are irreversible. The n-p chain is another example of our statement.

                  A.6. & A.7. The fact that you are alive and communicating shows that there is background time. Can you say it is non-existent? Can you show that sub-time or classical time are the only reality? Till that time, your premise is wrong and your conclusions are obviously wrong.

                  A.8. We had read your essay fully; otherwise we could not have made the comment. We do not believe in name dropping or references as we examine everything independently through empirical evidence before accepting or rejecting or reserving our opinion. Hence we ask questions.

                  Regards,

                  basudeba

                    Dear Paul,

                    Quantum entanglement indicates the existence of discrete-time with physical phenomena and this sub-time is expressional with discrete systems also, whereas this sub-time is essentially to be external to a noumenon or a system to describe the dynamics involved in a noumenon or a system.

                    As the particles are considered as zero-dimensional nothing inside the particles to be described in reference with spin period of time; whereas in eigen-rotational string, configuration space of tetrahedral-brane describes loculated vacuum fluctuation.

                    This indicates that noumenon within noumenon or system within a system, is essential to demonstrate discrete sub-time and thus holarchy of nature to be defined to measure sub-time, whereas the emergence of time is external to each noumenon or system.

                    In particle scenario, time and sub-time are linear and infinite, whereas in string-matter continuum scenario, time emerges as cyclic in reference with holarchial cyclic-times, while each cycle of time is finite and emerges external to the eigen-rotational cycle of string-segment and thus a linear flow of time with discrete cyclic-time is expressional.

                    With best wishes,

                    Jayakar