Berlin 2005 – wissenschaftliches Programm
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TT: Tiefe Temperaturen
TT 22: Transport - Nanoelectronics II: Quantum Dots and Wires, Point Contacts
TT 22.10: Vortrag
Montag, 7. März 2005, 16:30–16:45, TU H2053
Full Counting Statistics in Non-Markovian Interacting Electron Systems — •Alessandro Braggio1,2, Jürgen König1, and Rosario Fazio3 — 1Institut für Theoretische Physik III, Ruhr-Universität Bochum, 44780 Bochum, Germany — 2LAMIA-INFM, Dipartimento di Fisica, Universitá di Genova, Via Dodecaneso 33, 16133 Genova, Italy — 3NEST-INFM & Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy
Full counting statistics for electron transport is generalized to interacting electron systems with non-Markovian dynamics. In deriving a general expression for the cumulant generating function, we develop a method to properly account for the non-Markovian nature of the system. We compare with both the limits of Markovian dynamics and with transport through non-interacting systems, and discuss under which circumstances non-Markovian effects appear in the transport properties. As specific examples, we consider transport through a single-level quantum dot in second order of the tunnel coupling strength.