Resonant decay of Bose condensates
High Energy Physics - Phenomenology
2009-10-30 v3
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.
Cite
@article{arxiv.hep-ph/9610477,
title = {Resonant decay of Bose condensates},
author = {S. Yu. Khlebnikov and I. I. Tkachev},
journal= {arXiv preprint arXiv:hep-ph/9610477},
year = {2009}
}
Comments
LaTeX, 10 pages including 4 figures