Kinetic induced phase transition

TL;DR

This paper investigates a kinetic-induced phase transition in an Ising model with modified spin-flip dynamics, revealing a phase transition driven solely by external field and kinetic restrictions, even without static interactions.

Contribution

It introduces a novel kinetic restriction mechanism in an Ising model that induces phase transitions driven by dynamics rather than static interactions.

Findings

Phase transition occurs at finite external field without static interactions.

Kinetic restrictions can induce phase transitions through dynamical competition.

Master equation approach confirms the existence of the transition.

Abstract

An Ising model with local Glauber dynamics is studied under the influence of additional kinetic restrictions for the spin-flip rates depending on the orientation of neighboring spins. Even when the static interaction between the spins is completely eliminated and only an external field is taken into account the system offers a phase transition at a finite value of the applied field. The transition is realized due to a competition between the activation processes driven by the field and the dynamical rules for the spin-flips. The result is based on a master equation approach in a quantum formulation.