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Semiclassical Linear Response: Far-Infrared Absorption for Ballistic Quantum Systems

Mehlig, Bernhard ; Richter, Klaus
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Date of publication of this fulltext: 05 Aug 2009 13:29


We derive a general semiclassical theory for linear response functions at finite temperatures and finite frequencies for quantum systems with internal ballistic dynamics. As a specific example, we present a detailed quantum mechanical and semiclassical analysis of the infrared absorption in small two-dimensional conducting disks. We incorporate the effect of Coulomb interactions into our ...


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