Year: 2020
Type: article
Abstract: We study the dynamics of vortices in a two-dimensional, nonequilibrium system, described by the compact Kardar-Parisi-Zhang equation, after a sudden quench across the critical region. Our exact numerical solution of the phase-ordering kinetics shows that the unique interplay between nonequilibrium and the variable degree of spatial anisotropy leads to different critical regimes. We provide an analytical expression for the vortex evolution, based on scaling arguments, which is in agreement with the numerical results, and confirms the form of the interaction potential between vortices in this system.
Source: Physical Review Letters
Authors: A. Zamora, N. Lad, M. H. Szymanska
Institution: University College London
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G1182189486, G150127308, G3425352224, Far From Equilibrium Quantum Simulators, G7048923278, Polariton lattices: a solid-state platform for quantum simulations of correlated and topological states, Coherent quantum matter out of equilibrium - from fundamental physics towards applications, G7955909816
OpenAlex ID: W3010449647