Vortex lattices of bosons in deep rotating optical lattices
Other Condensed Matter
2008-07-23 v2
Abstract
We study vortex-lattice phases for a Bose gas trapped in a rotating optical-lattice near the superfluid--Mott-insulator transition. We find a series of abrupt structural phase transitions where vortices are pinned with their cores only on plaquettes or only on sites. We discuss connections between these vortex structures and the Hofstadter-butterfly spectrum of free particles on a rotating lattice.
Keywords
Cite
@article{arxiv.0710.1090,
title = {Vortex lattices of bosons in deep rotating optical lattices},
author = {Daniel S. Goldbaum and Erich J. Mueller},
journal= {arXiv preprint arXiv:0710.1090},
year = {2008}
}
Comments
15 Pages, 5 Figures; Title slightly modified; References updated; Organized into sections; Typos corrected; Some discussion added