Year: 2011
Type: article
Abstract: We demonstrate the validity of the current fluctuation theorem for a double quantum dot surrounded by four terminals within the Born, Markov, and secular approximations beyond the Coulomb-blockade regime. The electronic tunneling to two fermionic contacts conserves the total number of electrons, and the internal tunneling is phonon assisted by two bosonic baths. The adapted choice of thermodynamic parameters between the baths may drive a current against an existing electric or thermal gradient. We study the apparent violation of the fluctuation theorem when only some of the energy and matter currents are monitored.
Source: Physical Review B
Authors: Thilo Krause, Gernot Schaller, Tobias Brandes
Institution: Technische Universität Berlin
Language: English
Subfield: Statistical and Nonlinear Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funder: Deutsche Forschungsgemeinschaft
OpenAlex ID: W1984731313