Quench field sensitivity of two-particle correlation in a Hubbard model

TL;DR

This paper investigates how an external field influences short-range particle pairing in a 1D Hubbard model, revealing a field-sensitive, periodic transition from correlated to uncorrelated states and an associated quantum electrothermal effect.

Contribution

It demonstrates the field-dependent transition dynamics and energy transfer mechanisms in a driven Hubbard model, highlighting a novel quantum electrothermal phenomenon.

Findings

Transfer rate varies periodically with field strength

Long-time energy transfer is sensitive to the quench field

Irreversible energy transfer leads to a quantum electrothermal effect

Abstract

Short-range interaction can give rise to particle pairing with a short-range correlation, which may be destroyed in the presence of an external field. We study the transition between correlated and uncorrelated particle states in the framework of one-dimensional Hubbard model driven by a field. We show that the long time-scale transfer rate from an initial correlated state to final uncorrelated particle states is sensitive to the quench field strength and exhibits a periodic behavior. This process involves an irreversible energy transfer from the field to particles, leading to a quantum electrothermal effect.