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Reheating with effective potentials
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DOI：10.1088/1475-7516/2022/11/026.png)
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Abstract
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We consider reheating for a charged inflaton which is minimally coupled to electromagnetism. The evolution of such an inflaton induces a time-dependent mass for the photon. We show how the massive photon propagator can be expressed as a spatial Fourier mode sum involving three different sorts of mode functions, just like the constant mass case. We develop accurate analytic approximations for these mode functions, and use them to approximate the effective force exerted on the inflaton 0-mode. This effective force allows one to simply compute the evolution of the inflaton 0-mode and to follow the progress of reheating.
Keywords:
inflation
quantum field theory on curved space
Quantum fields in curved spacetimes
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5.9
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1.3W
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4.7W
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