Rectification in Nonequilibrium Steady States of Open Many-Body Systems

Kazuki Yamamoto; Yuto Ashida; Norio Kawakami

doi:10.1103/physrevresearch.2.043343

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arXiv · 2009.00838

Rectification in Nonequilibrium Steady States of Open Many-Body Systems

Kazuki Yamamoto·Yuto Ashida·Norio Kawakami

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Abstract

We study how translationally invariant couplings of many-particle 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. We first analyze dissipative dynamics associated with a nonreciprocal Lindblad operator and identify a class of Lindblad operators that are sufficient to acquire a unidirectional 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. We demonstrate this mechanism on the basis of both analytical and numerical approaches including the Rashba spin-orbit coupling and the Zeeman magnetic field.

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Kazuki Yamamoto, Yuto Ashida, Norio Kawakami. 2020-09-02. Rectification in Nonequilibrium Steady States of Open Many-Body Systems. https://doi.org/10.1103/physrevresearch.2.043343

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