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

TL;DR

This paper investigates how particle currents in an interacting fermionic lattice system decay and oscillate after a quench, under the influence of dephasing, revealing complex dynamics influenced by system parameters.

Contribution

It provides new insights into the non-trivial decay and oscillation behaviors of currents in dissipative, interacting fermionic systems following a quench.

Findings

Particle current exhibits non-trivial decay and oscillations due to dephasing.

Dynamics depend sensitively on system parameters such as interaction strength and dissipation.

The study reveals complex interplay between quench, interactions, and dissipation in fermionic systems.

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 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 and its dependence on various system parameters.