The cosmological BCS mechanism and the Big Bang Singularity

Details The cosmological BCS mechanism and the Big Bang Singularity The cosmological BCS mechanism and the Big Bang Singularity

2008-07-28

arxiv.org/abs/0807.4468v3

Phys.Rev.D80:023501,2009

Physics

High Energy Physics

High Energy Physics - Theory

replaced to match the journal version

Scientific paper

10.1103/PhysRevD.80.023501

We provide a novel mechanism that resolves the Big Bang Singularity present in FRW space-times without the need for ghost fields. Building on the fact that a four-fermion interaction arises in General Relativity when fermions are covariantly coupled, we show that at early times the decrease in scale factor enhances the correlation between pairs of fermions. This enhancement leads to a BCS-like condensation of the fermions and opens a gap dynamically driving the Hubble parameter $H$ to zero and results in a non-singular bounce, at least in some special cases.

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