[en] We present a physical implementation of a Maxwell demon which consists of a conventional single
electron transistor (SET) capacitively coupled to another quantum dot detecting its state. Altogether, the
system is described by stochastic thermodynamics. We identify the regime where the energetics of the
SET is not affected by the detection, but where its coarse-grained entropy production is shown to contain a
new contribution compared to the isolated SET. This additional contribution can be identified as the
information flow generated by the ‘‘Maxwell demon’’ feedback in an idealized limit.
Disciplines :
Physics
Author, co-author :
Strasberg, Philipp; Technische Universität Berlin > Institut für Theoretische Physik
Schaller, Gernot; Technische Universität Berlin > Institut für Theoretische Physik
Brandes, Tobias; Technische Universität Berlin > Institut füt Theoretische Physik
ESPOSITO, Massimiliano ; University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Language :
English
Title :
Thermodynamics of a Physical Model Implementing a Maxwell Demon
Publication date :
24 January 2013
Journal title :
Physical Review Letters
ISSN :
0031-9007
eISSN :
1079-7114
Publisher :
American Physical Society, Ridge, United States - New York
