Preheating in an Expanding Universe: Analytic Results for the Massless Case

Details Preheating in an Expanding Universe: Analytic Results for the Massless Case Preheating in an Expanding Universe: Analytic Results for the Massless Case

1997-02-04

arxiv.org/abs/hep-ph/9702244v2

Phys.Rev. D56 (1997) 706-716

Physics

High Energy Physics

High Energy Physics - Phenomenology

15pp, revtex. No figures. Very minor revisions; forthcoming in Phys Rev D

Scientific paper

10.1103/PhysRevD.56.706

Analytic results are presented for preheating in both flat and open models of chaotic inflation, for the case of massless inflaton decay into further inflaton quanta. It is demonstrated that preheating in both these cases closely resembles that in Minkowski spacetime. Furthermore, quantitative differences between preheating in spatially-flat and open models of inflation remain of order $10^{-2}$ for the chaotic inflation initial conditions considered here.

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