Extended gravitational action and novel consequences

Details Extended gravitational action and novel consequences Extended gravitational action and novel consequences

Nov 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009jphcs.196a2026s&link_type=abstract

Journal of Physics: Conference Series, Volume 196, Issue 1, pp. 012026 (2009).

Physics

Scientific paper

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.

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