Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe

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 Braggio^1,2, 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.