Nonequilibrium Quantum Phase Transitions in the Ising Model

TL;DR

This paper investigates nonequilibrium quantum phase transitions in the driven Ising model, revealing new anisotropic transitions and synchronized phases not present in equilibrium, with implications for quantum control.

Contribution

It introduces a novel class of nonequilibrium quantum phase transitions in the Ising model driven by monochromatic modulation, highlighting anisotropic and synchronized phases.

Findings

Identification of anisotropic nonequilibrium phase transition

Existence of synchronized quantum phases with external drive

Critical behavior similar to Ising model in nonequilibrium conditions

Abstract

We establish a set of nonequilibrium quantum phase transitions in the Ising model driven under monochromatic nonadiabatic modulation of the transverse field. We show that besides the Ising-like critical behavior, the system exhibits an anisotropic transition which is absent in equilibrium. The nonequilibrium quantum phases correspond to states which are synchronized with the external control in the long-time dynamics.