Anomaly Driven Cosmology: Big Boost Scenario and AdS/CFT Correspondence

Details Anomaly Driven Cosmology: Big Boost Scenario and AdS/CFT Correspondence Anomaly Driven Cosmology: Big Boost Scenario and AdS/CFT Correspondence

2008-01-14

arxiv.org/abs/0801.2063v1

JCAP 0805:020,2008

Physics

High Energy Physics

High Energy Physics - Theory

LaTeX, 14 pages, 1 figure

Scientific paper

10.1088/1475-7516/2008/05/020

We consider the cosmological evolution in a recently suggested new model of quantum initial conditions for the Universe. The effective Friedmann equation incorporates the effect of the conformal anomaly of quantum fields and, interestingly, shows that their vacuum Casimir energy is completely screened and does not gravitate. The cosmological evolution also features a new mechanism for a cosmological acceleration stage. This stage is followed by a big boost singularity -- a rapid growth up to infinity of the scale factor acceleration parameter. We also briefly discuss the relation between our model, the AdS/CFT correspondence and RS and DGP braneworlds.

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