[en] We consider open quantum systems weakly coupled to thermal reservoirs and subjected to quantum feedback
operations triggered with or without delay by monitored quantum jumps. We establish a thermodynamic
description of such systems and analyze how the first and second law of thermodynamics are modified by
the feedback. We apply our formalism to study the efficiency of a qubit subjected to a quantum feedback control
and operating as a heat pump between two reservoirs. We also demonstrate that quantum feedbacks can be used
to stabilize coherences in nonequilibrium stationary states which in some cases may even become pure quantum
states.
Disciplines :
Physique
Auteur, co-auteur :
Strasberg, P.; Teschische Universität Berlin > Institut für Theoretische Physik
Schaller, G.; Technische Universität Berlin > Institut für Theoretische Physik
Brandes, T.; Technische Universität Berlin > Institut für Theoretische Physik
ESPOSITO, Massimiliano ; University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Langue du document :
Anglais
Titre :
Thermodynamics of quantum-jump-conditioned feedback control
Date de publication/diffusion :
décembre 2013
Titre du périodique :
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
ISSN :
1539-3755
eISSN :
1550-2376
Maison d'édition :
American Physical Society, College Park, Etats-Unis - Maryland
