Next Article in Journal
A Review of Gravitational Waves from Cosmic Domain Walls
Next Article in Special Issue
Nucleosynthesis Predictions and High-Precision Deuterium Measurements
Previous Article in Journal
The Cosmic Causal Mass
Previous Article in Special Issue
Effective Gravitational “Constant” in Scalar-(Curvature)Tensor and Scalar-Torsion Gravities
Article Menu

Export Article

Open AccessArticle
Universe 2017, 3(2), 39; doi:10.3390/universe3020039

Lemaître Class Dark Energy Model for Relaxing Cosmological Constant

1
A.F. Ioffe Physico-Technical Institute of the Russian Academy of Sciences, Polytekhnicheskaja 26, 194021 St. Petersburg, Russia
2
Department of Mathematics and Computer Science, University of Warmia and Mazury, Słoneczna 54, 10-710 Olsztyn, Poland
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editors: Manuel Krämer, Mariusz P. Dąbrowski and Vincenzo Salzano
Received: 20 January 2017 / Revised: 23 March 2017 / Accepted: 2 May 2017 / Published: 4 May 2017
(This article belongs to the Special Issue Varying Constants and Fundamental Cosmology)
View Full-Text   |   Download PDF [447 KB, uploaded 4 May 2017]   |  

Abstract

Cosmological constant corresponds to the maximally symmetric cosmological term with the equation of state p = ρ . Introducing a cosmological term with the reduced symmetry, p r = ρ in the spherically symmetric case, makes cosmological constant intrinsically variable component of a variable cosmological term which describes time-dependent and spatially inhomogeneous vacuum dark energy. Relaxation of the cosmological constant from the big initial value to the presently observed value can be then described in general setting by the spherically symmetric cosmology of the Lemaître class. We outline in detail the cosmological model with the global structure of the de Sitter spacetime distinguished by the holographic principle as the only stable product of quantum evaporation of the cosmological horizon entirely determined by its quantum dynamics. Density of the vacuum dark energy is presented by semiclassical description of vacuum polarization in the spherically symmetric gravitational field, and its initial value is chosen at the GUT scale. The final non-zero value of the cosmological constant is tightly fixed by the quantum dynamics of evaporation and appears in the reasonable agreement with its observational value. View Full-Text
Keywords: dark energy; de Sitter vacuum; spacetime symmetry; relaxing cosmological constant dark energy; de Sitter vacuum; spacetime symmetry; relaxing cosmological constant
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Dymnikova, I.; Dobosz, A.; Sołtysek, B. Lemaître Class Dark Energy Model for Relaxing Cosmological Constant. Universe 2017, 3, 39.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Universe EISSN 2218-1997 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top