Quantum Transport on KAM Tori
Abstract
Although quantum tunneling between phase space tori occurs, it is suppressed in the semiclassical limit 0 for the Schr\"odinger equation of a particle in d under the influence of a smooth periodic potential. In particular this implies that the distribution of quantum group velocities near energy E converges to the distribution of the classical asymptotic velocities near E, up to a term of the order (1/E).
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