Noise-induced transition from superfluid to vortex state in two-dimensional nonequilibrium polariton condensates
Quantum Gases
2019-12-18 v1
Abstract
We study the Berezinskii-Kosterlitz-Thouless mechanism for vortex-antivortex pair formation in two-dimensional superfluids for nonequilibrium condensates. Our numerical study is based on a classical field model for driven-dissipative quantum fluids that is applicable to polariton condensates. We investigate the critical noise needed to create vortex-antivortex pairs in the systems, starting from a state with uniform phase. The dependence of the critical noise on the nonequilibrium and energy relaxation parameters is analyzed in detail.
Keywords
Cite
@article{arxiv.1909.12627,
title = {Noise-induced transition from superfluid to vortex state in two-dimensional nonequilibrium polariton condensates},
author = {Vladimir N. Gladilin and Michiel Wouters},
journal= {arXiv preprint arXiv:1909.12627},
year = {2019}
}