Optimal Persistent Currents for Interacting Bosons on a Ring with a Gauge Field
Quantum Gases
2014-07-09 v2
Abstract
We study persistent currents for interacting one-dimensional bosons on a tight ring trap, subjected to a rotating barrier potential, which induces an artificial U(1) gauge field. We show that, at intermediate interactions, the persistent current response is maximal, due to a subtle interplay of effects due to the barrier, the interaction and quantum fluctuations. These results are relevant for ongoing experiments with ultracold atomic gases on mesoscopic rings.
Cite
@article{arxiv.1310.0382,
title = {Optimal Persistent Currents for Interacting Bosons on a Ring with a Gauge Field},
author = {Marco Cominotti and Davide Rossini and Matteo Rizzi and Frank Hekking and Anna Minguzzi},
journal= {arXiv preprint arXiv:1310.0382},
year = {2014}
}
Comments
5 pages + supplemental material, 6 figures