Thermal energy in Robertson-Walker universes

Details Thermal energy in Robertson-Walker universes Thermal energy in Robertson-Walker universes

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phlb..219..408r&link_type=abstract

Physics Letters B, Volume 219, Issue 4, p. 408-412.

Physics

Scientific paper

The covariant functional Schrödinger formalism is used to study thermal equilibrium for a scalar field in Robertson-Walker spacetimes. It is found that thermal equilibrium can be maintained for field masses, coupling constants and geometries satisfying a given differential equation, of which the massless conformally coupled case is a solution, but not the only one. The thermal energy is computed; it contains a term which for particular geometries, such as de Sitter spacetime, grows in time.
On leave of absence from Departamento de Física Teórica, Universidad Complutense, 28040 Madrid 3, Spain.

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