Higher Dimensional Λ-CDM Universe: A Phenomenological Approach with Many Possibilities

Details Higher Dimensional Λ-CDM Universe: A Phenomenological Approach with Many Possibilities Higher Dimensional Λ-CDM Universe: A Phenomenological Approach with Many Possibilities

Feb 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009ijtp...48..373k&link_type=abstract

International Journal of Theoretical Physics, Volume 48, Issue 2, pp.373-379

Physics

Dark Energy, Variable &Lambda, &Lambda, -Cdm Cosmology

Scientific paper

In this paper we investigate the Λ-CDM universe by selecting the specific time dependent form of Λ, viz. dot{Λ}∝ H3 , in the context of 5-dimensional space time. Time-dependent form of equation of state parameter w is derived along with a possible signature flip of deceleration parameter q. It is also observed that a present age of the Universe, calculated for some specific values of parameter agrees very well with the observational data.

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