Hartle-Hawking boundary conditions as Nucleation by de Sitter Vacuum

Feleppa, Fabiano; Licata, Ignazio; Corda, Christian

doi:10.1016/j.dark.2019.100381

Cited by 20 publications

(19 citation statements)

References 68 publications

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“…My first conclusion is that if there is a tie into the formula 27 of my manuscript that in fact what was done in [38] may be a way to tie in energy, E, with entropy, and make the analogy to Tunneling from the interior to the exterior of a boundary between pre Planckian to Planckian space time more exact. I would be inclined to take the absolute magnitude of this above entropy expression and to assume the following, i.e.…”

Section: More On a Linkage To Pre-planckian To Planckian Physicsmentioning

confidence: 97%

“…I would be inclined to take the absolute magnitude of this above entropy expression and to assume the following, i.e. in the aftermath of tunneling right at the nexus of a boundary we would see approximately have for entropy generation, using the absolute magnitude of [38] as well as delta S ~ n (particle counting) by infinite quantum statistics as given by Ng. [39].…”

Section: More On a Linkage To Pre-planckian To Planckian Physicsmentioning

confidence: 99%

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How to Obtain a Mass of a Graviton, and Does This Methodology Lead to Voids?

Beckwith¹

2020

JHEPGC

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Using the Klauder enhanced quantization as a way to specify the cosmological constant as a baseline for the mass of a graviton, we eventually come up and then we will go to the relationship of a Planck Length to a De Broglie length in order to link how we construct a massive graviton mass, with cosmological constant and to interface that with entropy in the early universe. We then close with a reference to the possible quantum origins of e folding and inflation. This objective once achieved is connected with a possible mechanism for the creation of voids, in the later universe, using a construction of shock fronts from J. P. Onstriker, 1991 and followed up afterwards with Mukhanov's physical foundations to Cosmology book section as to indicate how variable input into self reproduction of the Universe structures may lead to void formation in the present era. A connection with Wesson's 5 dimensional cosmology is brought up in terms of a generalized uncertainty principle which may lead to variations of varying energy input into self reproducing cosmological structures which could enable non uniform structure formation and hence voids. One of the stunning results is that the figure of number of gravitons, about 10 58 , early on, is commensurate with a need for negative pressure, (middle of manuscript) which is a stunning result, partly based on Volovik and weakly interacting Bose gas model for pressure, which is completely unexpected. Note that in quantum physics, the idea statistically is that at large quantum numbers, we have an approach to classical physics results. We will do the same as to our cosmological work. This means that the

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Section: More On a Linkage To Pre-planckian To Planckian Physicsmentioning

confidence: 97%

Section: More On a Linkage To Pre-planckian To Planckian Physicsmentioning

confidence: 99%

How to Obtain a Mass of a Graviton, and Does This Methodology Lead to Voids?

Beckwith¹

2020

JHEPGC

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“…It is assumed that a whormhole can connect two distant places that they are therefore "entangled" within space and time. Euclidean approaches are of fundamental importance in quantum cosmology to characterize the early stages of the "Big Bang" [93,94,95]. Using an effective image is like joining two distant points on a piece of paper bypassing the surface with a "bridge" from the outside.…”

Section: Two Approaches To Non-localitymentioning

confidence: 99%

Quantum Mechanics Interpretation on Planck Scale

Licata

2020

Ukr. J. Phys.

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In the last years, many different primeval quantization theories on the Planck scale have been developed. Their goal is to provide a vacuum model able to ground the research beyond the Standard Model. Despite their goal is quite ambitious and aims toward particle physics, a necessary and notable consequence is we can read Quantum Mechanics from an emergent viewpoint. Different hypotheses on elementary cells are possible. We will focus here on the conceptual features of G. ’t Hooft and F.Winterberg theories with a special attention for the emerging of non-local correlations. These theories define a new style in the interpretation of Quantum Mechanics.

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“…This finds application to the ER = EPR conjecture-in this framework, geometry behaves as a geodesic tensor network that defines the quantum state properties of a fundamental quantum state of a given metric [55] and a virtual graviton exchange becomes equivalent to entanglement to which one can apply the concept of Penrose's decoherence of a quantum state [56]. In this crossing between locality of GR and the emergence of non-locality of QM as in [57,58], where de Sitter space-time is taken as the geometric structure of vacuum, the analysis of Einstein's equations can provide an additional support to the ER = EPR conjecture extended from AdS to dS [59] and to locally Euclidean space-times. This can be interpreted as the route to ER = EPR from general relativity.…”

Section: Introductionmentioning

confidence: 99%

General Relativistic Wormhole Connections from Planck-Scales and the ER = EPR Conjecture

Tamburini

Licata

2019

Entropy

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Einstein's equations of general relativity (GR) can describe the connection between events within a given hypervolume of size L larger than the Planck length L P in terms of wormhole connections where metric fluctuations give rise to an indetermination relationship that involves the Riemann curvature tensor. At low energies (when L ≫ L P ), these connections behave like an exchange of a virtual graviton with wavelength λ G = L as if gravitation were an emergent physical property. Down to Planck scales, wormholes avoid the gravitational collapse and any superposition of events or space-times become indistinguishable. These properties of Einstein's equations can find connections with the novel picture of quantum gravity (QG) known as the "Einstein-Rosen (ER)=Einstein-Podolski-Rosen (EPR)" (ER = EPR) conjecture proposed by Susskind and Maldacena in Anti-de-Sitter (AdS) space-times in their equivalence with conformal field theories (CFTs). In this scenario, non-traversable wormhole connections of two or more distant events in space-time through Einstein-Rosen (ER) wormholes that are solutions of the equations of GR, are supposed to be equivalent to events connected with non-local Einstein-Podolski-Rosen (EPR) entangled states that instead belong to the language of quantum mechanics. Our findings suggest that if the ER = EPR conjecture is valid, it can be extended to other different types of space-times and that gravity and space-time could be emergent physical quantities if the exchange of a virtual graviton between events can be considered connected by ER wormholes equivalent to entanglement connections.

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Hartle-Hawking boundary conditions as Nucleation by de Sitter Vacuum

Cited by 20 publications

References 68 publications

How to Obtain a Mass of a Graviton, and Does This Methodology Lead to Voids?

How to Obtain a Mass of a Graviton, and Does This Methodology Lead to Voids?

Quantum Mechanics Interpretation on Planck Scale

General Relativistic Wormhole Connections from Planck-Scales and the ER = EPR Conjecture

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