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Title

Chiral Maxwell demon in a quantum Hall system with a localized impurity

AuthorsRosselló, Guillem; López, Rosa ; Platero, Gloria
Issue Date15-Aug-2017
PublisherAmerican Physical Society
CitationPhysical Review B 96(7): 075305 (2017)
AbstractWe investigate the role of chirality on the performance of a Maxwell demon implemented in a quantum Hall bar with a localized impurity. Within a stochastic thermodynamics description, we investigate the ability of such a demon to drive a current against a bias. We show that the ability of the demon to perform is directly related to its ability to extract information from the system. The key features of the proposed Maxwell demon are the topological properties of the quantum Hall system. The asymmetry of the electronic interactions felt at the localized state when the magnetic field is reversed joined to the fact that we consider energy-dependent (and asymmetric) tunneling barriers that connect such state with the Hall edge modes allow the demon to properly work.
Publisher version (URL)https://doi.org/10.1103/PhysRevB.96.075305
URIhttp://hdl.handle.net/10261/188128
DOI10.1103/PhysRevB.96.075305
ISSN2469-9950
E-ISSN2469-9969
Appears in Collections:(IFISC) Artículos
(ICMM) Artículos
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