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A Note on Gravitational Baryogenesis

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Publication date
10 November 2007
Publisher
'American Physical Society (APS)'
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    Abstract

    The coupling between Ricci scalar curvature and the baryon number current dynamically breaks CPT in an expanding universe and leads to baryon asymmetry. We study the effect of time dependence of equation of state parameter of the FRW universe on this asymmetry.Comment: 10 pages, accepted for publication in Physical Review

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