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Title: Resolving cosmological singularities

Abstract

We find a simple modification of the longitudinal mode in General Relativity which incorporates the idea of limiting curvature. In this case the singularities in contracting Friedmann and Kasner universes are avoided, and instead, the universe has a regular bounce which takes place during the time inversely proportional to the square root of the limiting curvature. Away from the bounce, corrections to General Relativity are negligible. In addition the non-singluar modification of General Relativity delivers for free a realistic candidate for Dark Matter.

Authors:
 [1];  [2]
  1. Physics Department, American University of Beirut, Beirut (Lebanon)
  2. Niels Bohr International Academy, Niels Bohr Institute, Blegdamsvej 17, DK-2100 Copenhagen (Denmark)
Publication Date:
OSTI Identifier:
22679992
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2017; Journal Issue: 03; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; CORRECTIONS; COSMOLOGICAL MODELS; GENERAL RELATIVITY THEORY; MODIFICATIONS; NONLUMINOUS MATTER; SINGULARITY; UNIVERSE

Citation Formats

Chamseddine, Ali H., and Mukhanov, Viatcheslav, E-mail: chams@aub.edu.lb, E-mail: viatcheslav.mukhanov@physik.uni-muenchen.de. Resolving cosmological singularities. United States: N. p., 2017. Web. doi:10.1088/1475-7516/2017/03/009.
Chamseddine, Ali H., & Mukhanov, Viatcheslav, E-mail: chams@aub.edu.lb, E-mail: viatcheslav.mukhanov@physik.uni-muenchen.de. Resolving cosmological singularities. United States. doi:10.1088/1475-7516/2017/03/009.
Chamseddine, Ali H., and Mukhanov, Viatcheslav, E-mail: chams@aub.edu.lb, E-mail: viatcheslav.mukhanov@physik.uni-muenchen.de. Wed . "Resolving cosmological singularities". United States. doi:10.1088/1475-7516/2017/03/009.
@article{osti_22679992,
title = {Resolving cosmological singularities},
author = {Chamseddine, Ali H. and Mukhanov, Viatcheslav, E-mail: chams@aub.edu.lb, E-mail: viatcheslav.mukhanov@physik.uni-muenchen.de},
abstractNote = {We find a simple modification of the longitudinal mode in General Relativity which incorporates the idea of limiting curvature. In this case the singularities in contracting Friedmann and Kasner universes are avoided, and instead, the universe has a regular bounce which takes place during the time inversely proportional to the square root of the limiting curvature. Away from the bounce, corrections to General Relativity are negligible. In addition the non-singluar modification of General Relativity delivers for free a realistic candidate for Dark Matter.},
doi = {10.1088/1475-7516/2017/03/009},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 03,
volume = 2017,
place = {United States},
year = {Wed Mar 01 00:00:00 EST 2017},
month = {Wed Mar 01 00:00:00 EST 2017}
}