Dresden 2017 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 3: Transport: Quantum Dots, Quantum Wires, Point Contacts

TT 3.2: Vortrag

Montag, 20. März 2017, 09:45–10:00, HSZ 201

Violation of detailed balance for charge-transfer statistics in Coulomb-blockade systems — •Philipp Stegmann and Jürgen König — Theoretische Physik, Universität Duisburg-Essen and CENIDE, 47048 Duisburg, Germany

We discuss the possibility to generate in Coulomb-blockade systems steady states that violate detailed balance. This includes both voltage biased and non-biased scenarios. The violation of detailed balance yields that the charge-transfer statistics for electrons tunneling into an island experiencing strong Coulomb interaction is different from the statistics for tunneling out. This can be experimentally tested by time-resolved measurement of the island’s charge state. We demonstrate this claim for two model systems.
[1] P. Stegmann and J. König, Phys. Status Solidi B (2016),
[1] doi:10.1002/pssb.201600507.