Eur. Phys. J. Special Topics 227, 313–322 (2018)
https://doi.org/10.1140/epjst/e2018-00089-y

Regular Article

Oscillation and decay of particle current due to a quench and dephasing in an interacting fermionic system

¹ Engineering Product Development Pillar, Singapore University of Technology and Design, 8 Somapah Road, 487372 Singapore, Singapore
² MajuLab, CNRS-UNS-NUS-NTU International Joint Research Unit, UMI 3654, Singapore, Singapore

^a e-mail: dario poletti@sutd.edu.sg

Received: 9 October 2017
Received in final form: 18 December 2017
Published online: 28 September 2018

Abstract

We study the response of a particle current to dissipative dephasing in an interacting, few body fermionic lattice system. The particles are prepared in the many-body interacting ground state in presence of an artificial magnetic gauge field, which is subsequently quenched to zero. The initial current decays non-trivially in the dissipative environment and we explore the emerging dynamics, time scales and their dependence on the various system parameters.