Resolving cosmological singularities

doi:10.1088/1475-7516/2017/03/009

2017-03-07

101

Chamseddine, Ali H. *

Mukhanov, Viatcheslav

DOI：10.1088/1475-7516/2017/03/009

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摘要

En 中文

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.

Keyword:

cosmic singularity

modified gravity

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期刊

Journal of Cosmology and Astroparticle Physics

IF:

5.9

论文数:

1.3W

被引数:

4.7W

机构

American University of Beirut

学者数:

8.3K

论文数: 6.0K

被引数: 1.1W

niels bohr institute

学者数:

4.9K

论文数: 4.1K

被引数: 17

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