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- W1601871794 abstract "We study the thermodynamic behavior of a decaying scalar field coupled to a relativistic simple fluid. It is shown that if the decay products are represented by a thermalized bath, its temperature evolution law requires naturally a new phenomenological coupling term. This ``energy loss'' term is the product between the enthalpy density of the thermalized bath and the decay width of the scalar field. We also argue that if the field $phi$ decays adiabatically some thermodynamic properties of the fluid are preserved. In particular, for a field decaying into photons, the radiation entropy production rate is independent of the specific scalar field potential $V(phi)$, and the energy density $rho$ and average number density of photons n scale as $rho sim T^{4}$ and $n sim T^{3}$. To illustrate these results, a new warm inflationary scenario with no slow roll is proposed." @default.
- W1601871794 created "2016-06-24" @default.
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- W1601871794 date "2002-01-11" @default.
- W1601871794 modified "2023-09-26" @default.
- W1601871794 title "Thermodynamic approach to warm inflation" @default.
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- W1601871794 hasPublicationYear "2002" @default.
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