Radiative Transport Limit for the Random Schrödinger Equation with Long-Range Correlations

Details Radiative Transport Limit for the Random Schrödinger Equation with Long-Range Correlations Radiative Transport Limit for the Random Schrödinger Equation with Long-Range Correlations

2011-10-14

arxiv.org/abs/1110.3301v1

Mathematics

Analysis of PDEs

33 pages

Scientific paper

In this paper we study the asymptotic phase space energy distribution of solution of the Schr\"{o}dinger equation with a time-dependent random potential. The random potential is assumed to be with slowly decaying correlations. We show that the Wigner transform of a solution of the random Schr\"{o}dinger equation converges in probability to the solution of a radiative transfer equation. Moreover, we show that this radiative transfer equation with long-range coupling has a regularizing effect on its solutions. Finally, we give an approximation of this equation in term of a fractional Laplacian. The derivations of these results are based on an asymptotic analysis using perturbed-test-functions, martingale techniques, and probabilistic representations.

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