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DY: Dynamik und Statistische Physik

DY 27: Quantum Chaos

DY 27.5: Vortrag

Dienstag, 9. März 2004, 17:30–17:45, H3

Semiclassical approach to shot noise in chaotic systems — •Andreas Lassl, Marko Turek, and Klaus Richter — Institut für Theoretische Physik, Universität Regensburg, D-93040 Regensburg

We propose a semiclassical approach to shot noise in clean chaotic systems [1]. Starting from the semiclassical expression for the transmission we derive the Fano factor in terms of classical paths. As expected the application of the diagonal approximation yields a vanishing result for the Fano factor. Therefore one has to include action correlations between classical paths which can be expressed in terms of a crossing angle distribution as in [2]. Here we present detailed numerical studies of this crossing angle distribution in open systems.
[1] C.W.J. Beenakker and C. Schönenberger, Physics Today, 56 (5), 37-42 (2003)
[2] K. Richter and M. Sieber, PRL 89, 206801 (2002)