Chaos, Metastability and Ergodicity in Bose-Hubbard Superfluid Circuits
Quantum Gases
2017-12-22 v1 Quantum Physics
Abstract
The hallmark of superfluidity is the appearance of metastable flow-states that carry a persistent circulating current. Considering Bose-Hubbard superfluid rings, we clarify the role of "quantum chaos" in this context. We show that the standard Landau and Bogoliubov superfluidity criteria fail for such low-dimensional circuits. We also discuss the feasibility for a coherent operation of a SQUID-like setup. Finally, we address the manifestation of the strong many-body dynamical localization effect.
Keywords
Cite
@article{arxiv.1712.07909,
title = {Chaos, Metastability and Ergodicity in Bose-Hubbard Superfluid Circuits},
author = {Geva Arwas and Doron Cohen},
journal= {arXiv preprint arXiv:1712.07909},
year = {2017}
}
Comments
8 pages, 5 figs, review several results that concern Bose-Hubbard superfluid circuits