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arXiv · hep-ph/9610477

Resonant decay of Bose condensates

S. Yu. Khlebnikov·I. I. Tkachev
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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.

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S. Yu. Khlebnikov, I. I. Tkachev. 1997-02-25. Resonant decay of Bose condensates. https://doi.org/10.1103/physrevlett.79.1607

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