Equilibrium angular momentum and edge current in Bose-condensed cold atom systems with k-space Berry curvature
Mesoscale and Nanoscale Physics
2017-04-05 v1 Quantum Gases
Abstract
In this paper we study the properties of cold bosons in a two-dimensional optical lattice system where Bose-condensation occurs at a momentum point k with non-zero k-space Berry curvature. By combining results from both analytic and numerical approaches, we show that the boson system carries non-universal, temperature dependent equilibrium angular momentum and edge current at low temperatures.
Keywords
Cite
@article{arxiv.1506.01172,
title = {Equilibrium angular momentum and edge current in Bose-condensed cold atom systems with k-space Berry curvature},
author = {Xiao-Hui Li and Ting-Pong Choy and Tai-Kai Ng},
journal= {arXiv preprint arXiv:1506.01172},
year = {2017}
}