Resonant decay of Bose condensates

Preprint

31 October 1996

preprint
Published by arXiv in arXiv

Abstract

We present results of fully non-linear calculations of decay of the inflaton interacting with another scalar field X. Combining numerical results for cosmologically interesting range of resonance parameter, q \leq 10^6, with analytical estimates, we extrapolate them to larger q. We find that scattering of X fluctuations off the Bose condensate is a very efficient mechanism limiting growth of X fluctuations. For a single-component X, the resulting variance, at large q, is much smaller than that obtained in the Hartree approximation.

Keywords

LINEAR CALCULATIONS
BOSE CONDENSATES
LIMITING GROWTH
RESONANT DECAY
X FLUCTUATIONS
CONDENSATES
SCATTERING
RESONANCE

All Related Versions

Version 1, 1996-10-25, ArXiv
Version 2, 1996-10-31, ArXiv
Version 3, 1997-02-25, ArXiv
Published version: Physical Review Letters, 79 (9), 1607.

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