Scientific article
OA Policy
English

Generic transport formula for a system driven by Markovian reservoirs

Published inPhysical Review. B, Condensed Matter, vol. 102, no. 205131
Publication date2020
Abstract

We present a generic, compact formula for the current flowing in interacting and noninteracting systems which are driven out of equilibrium by biased reservoirs described by Lindblad jump operators. We show that, in the limit of high temperature and chemical potential, our formula is equivalent to the well-known Meir-Wingreen formula, which describes the current flowing through a system connected to fermionic baths, therefore bridging the gap between the two formalisms. Our formulation gives a systematic way to address the transport properties of correlated systems strongly driven out of equilibrium. As an illustration, we provide explicit calculations of the current in three cases : (i) a single-site impurity, (ii) a free-fermionic chain, and (iii) a fermionic chain with loss and gain terms along the chain. In this last case, we find that the current across the system has the same behavior for loss or gain terms and depends on the loss/gain rate in a nonmonotonic way.

Research groups
Citation (ISO format)
JIN, Zizhuo Tony, FILIPPONE, Michele, GIAMARCHI, Thierry. Generic transport formula for a system driven by Markovian reservoirs. In: Physical Review. B, Condensed Matter, 2020, vol. 102, n° 205131. doi: 10.1103/PhysRevB.102.205131
Main files (1)
Article (Published version)
accessLevelPublic
Identifiers
Additional URL for this publicationhttps://link.aps.org/doi/10.1103/PhysRevB.102.205131
Journal ISSN1098-0121
337views
292downloads

Technical informations

Creation04/03/2021 16:42:00
First validation04/03/2021 16:42:00
Update time16/03/2023 00:13:14
Status update16/03/2023 00:13:14
Last indexation31/10/2024 21:32:34
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack