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A Note on Gravitational Baryogenesis
classification
🌀 gr-qc
hep-th
keywords
asymmetrybaryonuniversebaryogenesisbreakscouplingcurrentcurvature
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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.
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Cited by 1 Pith paper
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Gravitational baryogenesis beyond the spectator approximation
Treating the baryogenesis operator as part of the action yields modified Friedmann and Raychaudhuri equations with an effective Planck mass M_eff² = M_Pl² - 2λ ∇_μ J^μ for the vector-density realization of the current.
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