Resonant decay of Bose condensates

Details Resonant decay of Bose condensates Resonant decay of Bose condensates

1996-10-24

arxiv.org/abs/hep-ph/9610477v3

Phys.Rev.Lett. 79 (1997) 1607-1610

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 10 pages including 4 figures

Scientific paper

10.1103/PhysRevLett.79.1607

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.

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