AC-driven Quantum Phase Transition in the Lipkin-Meshkov-Glick Model

TL;DR

This paper investigates how monochromatic external driving induces nonequilibrium quantum phase transitions and multistability in the Lipkin-Meshkov-Glick model, revealing tunable stable states and dynamically stabilized quantum phases.

Contribution

It introduces a novel analysis of driven quantum phase transitions and multistability in the Lipkin-Meshkov-Glick model under external modulation.

Findings

External driving creates a rich phase diagram with multistability.

The number of stable states can be controlled by the driving amplitude.

The system exhibits dynamically stabilized quantum phases.

Abstract

We establish a set of nonequilibrium quantum phase transitions in the Lipkin-Meshkov-Glick model under monochromatic modulation of the inter-particle interaction. We show that the external driving induces a rich phase diagram that characterizes the multistability in the system. Interestingly, the number of stable configurations can be tuned by increasing the amplitude of the driving field. Furthermore, by studying the quantum evolution, we demonstrate that the system exhibits a set of quantum phases that correspond to dynamically stabilized states.