Anomalous energetics and dynamics of moving vortices

TL;DR

This paper investigates how the motion of vortices in an overdamped xy-model significantly alters their deformation, energetics, and dynamics, providing insights into anomalous behaviors observed in experiments with smectic-C films.

Contribution

It reveals that vortex properties are qualitatively and significantly modified by motion, advancing understanding of topological defect dynamics in ordered systems.

Findings

Vortex energetics are altered by motion.

Vortex deformation depends on velocity.

Dynamics deviate from static predictions.

Abstract

Motivated by the general problem of moving topological defects in an otherwise ordered state and specifically, by the anomalous dynamics observed in vortex-antivortex annihilation and coarsening experiments in freely-suspended smectic-C films by Clark, et al., I study the deformation, energetics and dynamics of moving vortices in an overdamped xy-model and show that their properties are significantly and qualitatively modified by the motion.