Dresden 2003 – scientific programme
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DY: Dynamik und Statistische Physik
DY 46: Poster
DY 46.36: Poster
Thursday, March 27, 2003, 15:30–18:00, P1
Semiclassical Theory of Chaotic Quantum Transport — •Andreas Laßl1, Marko Turek1, Martin Sieber2, and Klaus Richter1 — 1Institut für Theoretische Physik, Universität Regensburg, D-93040 Regensburg — 2School of Mathematics, University of Bristol, University Walk, Bristol BS8 1TW, England
We present a refined semiclassical approach to quantum corrections to the conductance in clean chaotic mesoscopic systems within the Landauer- and Kubo-framework. We demonstrate that including off-diagonal contributions to double sums over classical paths gives a weak-localization correction in quantitative agreement with results from random matrix theory [1]. We further discuss the magnetic field dependence and implications for universal conductance fluctuations. This semiclassical treatment accounts for current conservation.
[1] K. Richter and M. Sieber, Phys. Rev. Lett. 89, 206801 (2002).