Dissipation via particle production in scalar field theories.

@article{Boyanovsky1995DissipationVP,
  title={Dissipation via particle production in scalar field theories.},
  author={Boyanovsky and HJ deVega and Holman and Lee and Caesar Singh},
  journal={Physical review. D, Particles and fields},
  year={1995},
  volume={51 8},
  pages={4419-4444}
}
The non-equilibrium dynamics of the first stage of the reheating process, that is dissipation via particle production is studied in scalar field theories in the unbroken and in the broken symmetry phase. We begin with a perturbative study to one loop and show explicitly that the mechanism of dissipation via particle production cannot be explained with a simple derivative term in the equation of motion. The dissipative contribution is non-local and there does not exist a local (Markovian) limit… CONTINUE READING

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