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TT: Fachverband Tiefe Temperaturen
TT 21: Transport: Fluctuations and Noise
TT 21.7: Talk
Tuesday, March 24, 2009, 16:00–16:15, HSZ 304
Electron counting statics in transport through double quantum dots — •Clive Emary1, David Marcos2, Ramon Aguado2, and Tobias Brandes1 — 1Institut für Theor. Physik, TU Berlin — 2Departamento de Teoria de la Materia Condensada, CSIC, Madrid
The double quantum dot is an important paradigm of quantum transport, representing a quantum two level system (qubit) connected to leads. We present several new aspects of the transport through a double quantum dot in the Coulomb blockade regime. On the one hand we discuss finite-frequency full counting statistics of the transport electrons and investigate the visibility of coherent effects at finite temperatures and bias; on the other, we study the effects of higher-order electron tunneling process usually neglected in standard treatments.