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A mechanism for formation of Bose-Einstein condensation in cosmology

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arxiv 1908.08784 v2 pith:MDRYJ6P2 submitted 2019-08-23 gr-qc astro-ph.COhep-phhep-th

A mechanism for formation of Bose-Einstein condensation in cosmology

classification gr-qc astro-ph.COhep-phhep-th
keywords particlesbose-einsteincosmologycouplingformationrightarrowscalartrilinear
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We introduce a toy model of scalar particles with a trilinear scalar coupling in cosmology. The trilinear coupling $\phi^2\chi$ causes production of non-relativistic $\phi$ particles through the process $\chi\chi\,\rightarrow\,\phi\phi$ where, initially, only relativistic $\chi$ particles are present. We consider the initial times of $\chi\chi\,\rightarrow\,\phi\phi$ and observe that the curved space effects promote formation of Bose-Einstein condensate of $\phi$ particles.

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Cited by 3 Pith papers

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  3. Gravitational particle production, the cosmological tensions and fast radio bursts

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