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Title: Quantum compositeness of gravity: black holes, AdS and inflation

Abstract

Gravitational backgrounds, such as black holes, AdS, de Sitter and inflationary universes, should be viewed as composite of N soft constituent gravitons. It then follows that such systems are close to quantum criticality of graviton Bose-gas to Bose-liquid transition. Generic properties of the ordinary metric description, including geodesic motion or particle-creation in the background metric, emerge as the large-N limit of quantum scattering of constituent longitudinal gravitons. We show that this picture correctly accounts for physics of large and small black holes in AdS, as well as reproduces well-known inflationary predictions for cosmological parameters. However, it anticipates new effects not captured by the standard semi-classical treatment. In particular, we predict observable corrections that are sensitive to the inflationary history way beyond last 60 e-foldings. We derive an absolute upper bound on the number of e-foldings, beyond which neither de Sitter nor inflationary Universe can be approximated by a semi-classical metric. However, they could in principle persist in a new type of quantum eternity state. We discuss implications of this phenomenon for the cosmological constant problem.

Authors:
;  [1]
  1. Arnold Sommerfeld Center for Theoretical Physics, Department für Physik, Ludwig-Maximilians-Universität München, Theresienstr. 37, 80333 München (Germany)
Publication Date:
OSTI Identifier:
22369804
Resource Type:
Journal Article
Journal Name:
Journal of Cosmology and Astroparticle Physics
Additional Journal Information:
Journal Volume: 2014; Journal Issue: 01; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1475-7516
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; APPROXIMATIONS; BLACK HOLES; BOSE-EINSTEIN GAS; CORRECTIONS; COSMOLOGICAL CONSTANT; DE SITTER GROUP; DE SITTER SPACE; FORECASTING; GRAVITATION; GRAVITONS; INFLATIONARY UNIVERSE; METRICS; PARTICLES; SCATTERING; STANDARDS; COSMOLOGICAL INFLATION

Citation Formats

Dvali, Gia, and Gomez, Cesar. Quantum compositeness of gravity: black holes, AdS and inflation. United States: N. p., 2014. Web. doi:10.1088/1475-7516/2014/01/023.
Dvali, Gia, & Gomez, Cesar. Quantum compositeness of gravity: black holes, AdS and inflation. United States. https://doi.org/10.1088/1475-7516/2014/01/023
Dvali, Gia, and Gomez, Cesar. 2014. "Quantum compositeness of gravity: black holes, AdS and inflation". United States. https://doi.org/10.1088/1475-7516/2014/01/023.
@article{osti_22369804,
title = {Quantum compositeness of gravity: black holes, AdS and inflation},
author = {Dvali, Gia and Gomez, Cesar},
abstractNote = {Gravitational backgrounds, such as black holes, AdS, de Sitter and inflationary universes, should be viewed as composite of N soft constituent gravitons. It then follows that such systems are close to quantum criticality of graviton Bose-gas to Bose-liquid transition. Generic properties of the ordinary metric description, including geodesic motion or particle-creation in the background metric, emerge as the large-N limit of quantum scattering of constituent longitudinal gravitons. We show that this picture correctly accounts for physics of large and small black holes in AdS, as well as reproduces well-known inflationary predictions for cosmological parameters. However, it anticipates new effects not captured by the standard semi-classical treatment. In particular, we predict observable corrections that are sensitive to the inflationary history way beyond last 60 e-foldings. We derive an absolute upper bound on the number of e-foldings, beyond which neither de Sitter nor inflationary Universe can be approximated by a semi-classical metric. However, they could in principle persist in a new type of quantum eternity state. We discuss implications of this phenomenon for the cosmological constant problem.},
doi = {10.1088/1475-7516/2014/01/023},
url = {https://www.osti.gov/biblio/22369804}, journal = {Journal of Cosmology and Astroparticle Physics},
issn = {1475-7516},
number = 01,
volume = 2014,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 2014},
month = {Wed Jan 01 00:00:00 EST 2014}
}