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-----Original Message-----
From: 'Brent Meeker' via Atoms and the Void <atv...@googlegroups.com>
To: atvoid <atv...@googlegroups.com>
Sent: Wed, Aug 7, 2019 5:43 pm
Subject: Re: Vic’s “A Scenario for a natural Origin of our Universe” and the Arrow of Time.
I was nodding in agreement until I came to this: "However, based on the Third Quantization scenario this too is no mystery. As related by numerous descriptions of third quantization, at origin there exist a null boundary. Inflation launches in both directions of time. Therefore, Unitarity is preserved globally, but the expansion on either side of the null boundary is non unitary and information is not conserved."
This looks like a completely ad hoc cheat to me. Unitarity conserves information in this universe alone, or else it means nothing. If you can "conserve" quantities by postulating a balancing value in another universe you've just given up the concept of conservation. Vic was careful to tie conservation to symmetry by his, somewhat loose, application of Noether's theorem. In this universe unitarity holds because the equations of evolution are time translation invariant. You don't need another universe.
https://physics.stackexchange.com/questions/41765/is-there-a-symmetry-associated-to-the-conservation-of-information
Brent
The non conservation of information is implicit in Vic's explanation for the Arrow of time as related in his book "Has Science Found God" Appendix C. At any moment in time , the universe is at max entropy, that is , contains maximum number of microstates for the macro state we call universe. It's the expansion of the universe that allows an AOT at all. He expanded on this in Fallacy by incorporating the idea of entropy density, to show how this could work. Vic was in the same camp with Unruh, Wald , Thorne and others on information conservation , though he never got involved in the black hole information question in his books. I talked with Vic about this in Orlando when he came to speak at UCF. This was in the context of an idea on dark energy I posted on here and was mentioned in several of Vic's books. This idea has now been ruled out by the much better data from Planck. I subsequently posted a new approach on dark energy but sadly this was after Vic passed away.( Planck has not ruled out Vic's assertion of course) Vic was severely criticized by Luke Barnes when he expanded on this along the lines He and I discussed in Orlando. This was to model this process in terms of entropy density, showing how this process not being scale invariant can work. I subsequently discovered a paper that made the same argument Vic had made with regard to global entropy , this was also after Vic passed away. Luke Barnes is wrong.
To your point. The argument is that just like a black Hole singularity destroys information
a time reversed singularity ( the big bang?) creates information. Information conservation will not hold in globally in gravity anymore than energy conservation holds globally in gravity. .
Noether's theorem on time and space translation is invalid when spacetime is being created ( Big Bang Singularity) or annihilated ( Black Hole Singularity) However just like we can argue the total energy of the universe is zero if it closed, I would argue that in the Biverse , total information is zero.
The need for a Biverse has been argued for in many papers all the way back to the 1960's, I won't do that here. As I have argued unitarity is defined in terms of the time evolution of the wave function.
But in gravity , time is arguably emergent. There is a kind of unitary globally ( Biverse) but simple quantum evolution does not apply to gravity , I would argue,
because gravity is a semi classical measurement process, that is induced by the collection action of the quantum fields of the vacuum unitary does not hold. However conservation of probability does hold and this is all that really matters.
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See attached
Bob Zannelli
On 8/7/2019 7:03 AM, spinozalens via Atoms and the Void wrote:
--Vic’s “A Scenario for a natural Origin of our Universe” and the Arrow of Time.The problem of explaining the Arrow of Time Naturally is often posed as one of “unsolved “problems in Physics. Sean Carroll dedicated an entire book to this question. (“From Eternity to Here” I strongly recommend this book for its clear and substantive explanation of the underlying physics.)However, the purpose of this post is to make the claim that the cosmological Arrow of time, rather than being a great mystery in physics is actually an inevitable result of the quantum tunneling of Universes into existence. The arrow of time rather than being a statistical accident is the result of the physics of Third Quantization. In other words the low entropy boundary at the origin of the Universe is an inevitable feature of the tunneling process. This point has been made in an earlier post but here I make it the central topic because of its importance.In this post I won’t relate in any detail Vic’s origin paper which is available in the Physics eprint website. Rather for clarity I will only relate what is needed to support my argument. Of course, this argument rests on the validity of the entire paper, but the validity of Vic’s Origin paper will be taken as a given here. See Attached
Bob Zannelli
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a time reversed singularity ( the big bang?) creates information. Information conservation will not hold in globally in gravity anymore than energy conservation holds globally in gravity. .
Noether's theorem on time and space translation is invalid when spacetime is being created ( Big Bang Singularity) or annihilated ( Black Hole Singularity) However just like we can argue the total energy of the universe is zero if it closed, I would argue that in the Biverse , total information is zero.
The need for a Biverse has been argued for in many papers all the way back to the 1960's, I won't do that here. As I have argued unitarity is defined in terms of the time evolution of the wave function.
But in gravity , time is arguably emergent. There is a kind of unitary globally ( Biverse) but simple quantum evolution does not apply to gravity , I would argue,
because gravity is a semi classical measurement process, that is induced by the col

To view this discussion on the web visit https://groups.google.com/d/msgid/atvoid/38172827.2020075.1565229444080%40mail.yahoo.com.