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Title: A microscopic model for an emergent cosmological constant

Journal Article · · International Journal of Modern Physics D
 [1];  [2];  [3]
  1. Aix Marseille Univ, Université de Toulon, CNRS, CPT, Marseille (France)
  2. Universidad Nacional Autónoma de México (Mexico)
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., CA (United States)

In this work, the value of the cosmological constant is explained in terms of a noisy diffusion of energy from the low energy particle physics degrees of freedom to the fundamental Planckian granularity which is expected from general arguments in quantum gravity. The quantitative success of our phenomenological model is encouraging and provides possibly useful insights about physics at the scale of quantum gravity.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1490465
Journal Information:
International Journal of Modern Physics D, Vol. 27, Issue 14; ISSN 0218-2718
Publisher:
World ScientificCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 25 works
Citation information provided by
Web of Science

References (25)

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The cosmological constant problem journal January 1989
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On the trace-free Einstein equations as a viable alternative to general relativity journal October 2011
Experimental search for a Lorentz invariant spacetime granularity: Possibilities and bounds journal March 2013
The trace-free Einstein equations and inflation journal December 2013
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Data tables for Lorentz and C P T violation journal March 2011
Lorentz Invariance and Quantum Gravity: An Additional Fine-Tuning Problem? journal November 2004
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Dirac electron in space-times with torsion: Spinor propagation, spin precession, and nongeodesic orbits journal September 1981
Dark Energy from Violation of Energy Conservation journal January 2017
Modern Tests of Lorentz Invariance journal September 2005
Why there is nothing rather than something: A theory of the cosmological constant journal December 1988
Search for a proposed signature of Lorentz-invariant spacetime granularity journal June 2011
Zur Theorie der Elementarteilchen journal June 1959
A dynamical origin for the electromagnetic field journal October 1963

Cited By (4)

Compact objects in unimodular gravity journal September 2019
Cosmic acceleration in unimodular gravity journal June 2019
Primordial Power Spectra from an Emergent Universe: Basic Results and Clarifications journal December 2018
Cosmic acceleration in unimodular gravity text January 2019

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