Entanglement entropy in curved spacetimes with event horizons

Müller, Rainer; Lousto, Carlos O.

doi:10.1103/physrevd.52.4512

Cited by 63 publications

(114 citation statements)

References 24 publications

(46 reference statements)

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“…Now, since there will always exist a nonzero contribution for nucleation of pairs of baby universes it follows that the Coleman mechanism for the big fix [8] becomes consistent [9,10]. We finally point out that the quantum-mechanical entanglement energy for a single universe should be interpreted in terms of the existence of a future event horizon, which is granted for any model of the current accelerating universe, where entanglement is established between the two independent spacetime regions created by that horizon [11].…”

Section: Conclusion and Further Commentsmentioning

confidence: 99%

Why a universe as a whole must be a quantum object

González-Dı́az

2011

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Section: Conclusion and Further Commentsmentioning

confidence: 99%

Why a universe as a whole must be a quantum object

González-Dı́az

2011

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“…Having said this note by extention [7] is presented toward the end of this manuscript as a partial resolution of some of the pathologies brought up in this article before the entanglement entropy section. No matter how small the length gets, entropy S if it is entanglement entropy, will not go to zero.…”

Section: H G H a ρ − ⇔ ≈mentioning

confidence: 99%

Cosmic Initial Singularities in a Single Repeating Universe as Opposed to Their Behavior in a Multiverse

Beckwith

2017

JHEPGC

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When the initial radius of the universe is set in four dimensions and if there is only ONE repeating universe, then the initial radii of the universe is R → 0 or gets very close to zero if we use the Einstein Equations modified by Stoica. The Einstein Equations are reset by Stoical in a formalism which removes in four dimensions, the big bang singularity pathology. So then the reason for Planck length no longer holds. This manuscript assumes a repeating single universe. We present entanglement entropy in the early universe with a shrinking scale factor, due to Muller and Lousto, and show that there are consequences due to initial entangled Our new manuscript presentation sets as a starting point a cosmology with a non-zero Λ vacuum energy. The non-zero Λ vacuum energy, initial configuration of the universe permits us to keep in an information theory stand point (information theory), computational bits for our configuration of cosmological expansion. This assemblage of computational bits occurs in cosmological evolution even if in an initial four-dimensional cosmology, we have the initial radii of the universe R → 0. We also find that in the case of a multiverse, such considerations will not hold and that cosmic singularities have a more different characteristic in the multiverse setting than in the single universe repeated over and over again, i.e. using an argument borrowed and modified from Kauffman, the multiverse will not mandate "perfect" singularities. The existence of a multiverse may allow for non zero singularities in lieu with the Kauffman argument cited at the end of the document, plus the lower pre big bang temperatures which may allow for the survival of gravitons just before the onset of the cosmological expansion phase, if a multiverse exists embedding our present universe.

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“…Here also, from [1] we have an energy expression from (5) above, as well as employing the string theory result of ( )…”

Section: Construction Of Temperature Quenching Preliminary Argumentmentioning

confidence: 99%

“…Note that [1] has an alternative expression for the early universe which can be written as, if a is the scale factor, of radii H r for a horizon radius, with…”

Section: Construction Of Temperature Quenching Preliminary Argumentmentioning

confidence: 99%

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Is Temperature Quenching in the Early Universe Due to Particle Production, Or Quantum Occupation States, Or the Influence of Quantum Teleportation?

Beckwith¹

2018

JHEPGC

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We examine the role of particle nucleation in the initial universe, and argue that there is a small effect due to particle nucleation in terms of lowering initial temperature, in tandem with energy density and scale factor contributions. If such scaling exists as a major order effect, then quenching of temperature proportional to a vacuum nucleation at or before the electroweak era is heavily influenced by a number, n, which is either a quantum number (quantum cosmology) or a particle count before the electro weak era. If the supposition is for a particle count, say of gravitons from a prior universe to today's universe, initially, we can compare via a thermodynamic argument compared as to a modified Heisenberg uncertainty principle as to what this says about particle count information, we have a richer cosmological picture to contend with. We close with a speculation as to how a quantum teleportation picture for Pre-Planckian space-time physics may influence our physics discussion.

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Entanglement entropy in curved spacetimes with event horizons

Cited by 63 publications

References 24 publications

Why a universe as a whole must be a quantum object

Why a universe as a whole must be a quantum object

Cosmic Initial Singularities in a Single Repeating Universe as Opposed to Their Behavior in a Multiverse

Is Temperature Quenching in the Early Universe Due to Particle Production, Or Quantum Occupation States, Or the Influence of Quantum Teleportation?

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