Bulletin of the American Physical Society
APS March Meeting 2021
Volume 66, Number 1
Monday–Friday, March 15–19, 2021; Virtual; Time Zone: Central Daylight Time, USA
Session H71: Poster Session I (2:00pm - 4:00pm)
2:00 PM,
Tuesday, March 16, 2021
Abstract: H71.00269 : Dissipation-induced current rectification in nonequilibrium steady states of open many-body systems
Presenter:
Kazuki Yamamoto
(Department of Physics, Kyoto University)
Authors:
Kazuki Yamamoto
(Department of Physics, Kyoto University)
Yuto Ashida
(Department of Applied Physics, University of Tokyo)
Norio Kawakami
(Department of Physics, Kyoto University)
In this talk, we study how translationally invariant couplings of many-body systems and nonequilibrium baths can be used to rectify particle currents, for which we consider minimal setups to realize bath-induced currents in nonequilibrium steady states of one-dimensional open fermionic systems [1]. We first analyze dissipative dynamics associated with nonreciprocal Lindblad operators and identify a class of them that are sufficient to acquire a nonreciprocal current. We show that unidirectional particle transport can in general occur when a Lindblad operator is reciprocal provided that the inversion symmetry and the time-reversal symmetry of the microscopic Hamiltonian are broken, e.g., in the presence of the Rashba spin-orbit coupling and the Zeeman magnetic field.
[1] K. Yamamoto et al., arXiv: 2009.00838.
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