Article (Scientific journals)
Fluctuation theorems for capacitively coupled electronic currents
Bulnes Cuetara, Gregory; Esposito, Massimiliano; Gaspard, Pierre
2011In Physical Review. B, Condensed Matter
Peer reviewed
 

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Abstract :
[en] The counting statistics of electron transport is studied theoretically in a system with two capacitively coupled parallel transport channels. Each channel is composed of a quantum dot connected by tunneling to two reservoirs. The nonequilibrium steady state of the system is controlled by two affinities or thermodynamic forces, each one determined by the two reservoirs of each channel. The status of a single-current fluctuation theorem is investigated starting from the fundamental two-current fluctuation theorem, which is a consequence of microreversibility. We show that the single-current fluctuation theorem holds in the limit of a large Coulomb repulsion between the two parallel quantum dots, as well as in the limit of a large current ratio between the parallel channels. In this latter limit, the symmetry relation of the single-current fluctuation theorem is satisfied with respect to an effective affinity that is much lower than the affinity determined by the reservoirs. This backaction effect is characterized quantitatively.
Disciplines :
Physics
Author, co-author :
Bulnes Cuetara, Gregory ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Esposito, Massimiliano  ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Gaspard, Pierre;  Université Libre de Bruxelles > Center for Nonlinear Phenomena and Complex Systems
Language :
English
Title :
Fluctuation theorems for capacitively coupled electronic currents
Publication date :
2011
Journal title :
Physical Review. B, Condensed Matter
ISSN :
0163-1829
Publisher :
American Institute of Physics, New York, United States - New York
Peer reviewed :
Peer reviewed
Available on ORBilu :
since 29 November 2013

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