Mehlig, Bernhard and Richter, Klaus (1998) Semiclassical Linear Response: Far-Infrared Absorption for Ballistic Quantum Systems. Physical Review Letters 80 (9), pp. 1936-1939.
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Other URL: http://link.aps.org/abstract/PRL/v80/p1936
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 semiclassical approach using a Thomas-Fermi approximation, which is valid for low external frequencies. Our semiclassical results are in excellent agreement with corresponding quantum calculations.
|Institutions:||Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter|
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||20 Mar 2007|
|Last Modified:||20 Jul 2011 20:57|