Ergodic properties of the quantum geodesic flow on tori
Abstract
We study ergodic averages for a class of pseudodifferential operators on the flat N-dimensional torus with respect to the Schr\"odinger evolution. The later can be consider a quantization of the geodesic flow on N. We prove that, up to semi-classically negligible corrections, such ergodic averages are translationally invariant operators.
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