Berlin 2008 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 3: Transport: Fluctuations and Noise

TT 3.8: Vortrag

Montag, 25. Februar 2008, 12:00–12:15, H 2053

Noise spectra in mesoscopic transport - an exact result — •Philipp Zedler and Tobias Brandes — Sekr. EW 7-1, TU Berlin, Hardenbergstr. 36, 10623 Berlin, Germany

The resonant level model, which is exactly solvable, provides us with the opportunity to check approaches to quantum noise in mesoscopic transport. We evaluate current cumulants using the exact Keldysh Green Functions. In this approach we can easily assume non-flat tunneling density of states and observe all quantum effects. We compare our results to those obtained with Master equations and scattering theory.