Extended gravitational action and novel consequences

Sinha, KP (2009) Extended gravitational action and novel consequences. In: Conference on Sudarshan: 7 Science Quests, NOV 06-07, 2006, Univ Texas, Austin, TX.

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Abstract

It is found that the inclusion of higher derivative terms in the gravitational action along with concepts of phase transition and spontaneous symmetry breaking leads to some novel consequence. The Ricci scalar plays the dual role, like a physical field as well as a geometrical field. One gets Klein-Gordon equation for the emerging field and the corresponding quanta of geometry are called Riccions. For the early universe the model removes singularity along with inflation. In higher dimensional gravity the Riccions can break into spin half particle and antiparticle along with breaking of left-right symmetry. Most tantalizing consequences is the emergence of the physical universe from the geometry in the extreme past. Riccions can Bose condense and may account for the dark matter.

Item Type:	Conference Paper
Series.:	Journal of Physics Conference Series
Publisher:	IOP Publishing ltd
Additional Information:	Copyright of this article belongs to IOP Publishing ltd.
Department/Centre:	Division of Chemical Sciences > NMR Research Centre (Formerly Sophisticated Instruments Facility) Division of Physical & Mathematical Sciences > Physics
Date Deposited:	23 Mar 2011 09:41
Last Modified:	23 Mar 2011 09:41
URI:	http://eprints.iisc.ac.in/id/eprint/36211

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