Moving glass phase of driven lattices

TL;DR

This paper introduces a new moving glass phase in driven lattices with static disorder, characterized by topological order and elastic flow through channels, predicting finite transverse critical current and suggesting experimental validation.

Contribution

It reveals a novel moving glass state with topological order persisting at high velocities, extending understanding of driven disordered lattices.

Findings

Persistence of static disorder effects at high velocity

Identification of a moving glass phase with topological order

Prediction of finite transverse critical current

Abstract

We study periodic lattices, such as vortex lattices, driven by an external force in a random pinning potential. We show that effects of static disorder persist even at large velocity. It results in a novel moving glass state with topological order analogous to the static Bragg glass. The lattice flows through well-defined, elastically coupled, {\it % static} channels. We predict barriers to transverse motion resulting in finite transverse critical current. Experimental tests of the theory are proposed.