Symmetry breaking, phase transition and gravity

Sinha, KP (1985) Symmetry breaking, phase transition and gravity. In: Pramana: Journal of Physics, 25 (4). pp. 343-347.

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Abstract

We discuss some recent work in which the non-minimal coupling of gravity with a self-interacting scalar field in the presence of matter can lead to a phase transition when the sign of gravitational interaction changes. It is found that gravity becomes repulsive above a critical temperature which may lie in the range $10^{24}$ to $10^{32}K$ which obtains in the very early universe $(10^{-35} to 10^{-43} sec)$ of the standard model. The results are intimately connected with big bang and possible removal of singularity.

Item Type:	Journal Article
Publication:	Pramana: Journal of Physics
Publisher:	Indian Academy of Sciences
Additional Information:	Copyright of this article belongs to Indian Academy of Sciences.
Keywords:	Symmetry-breaking;phase transition;gravity.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	25 Jul 2008
Last Modified:	19 Sep 2010 04:46
URI:	http://eprints.iisc.ac.in/id/eprint/14697

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