Stripe-ordered superfluid and supersolid phases in attractive Hofstadter-Hubbard model
Quantum Gases
2015-01-14 v2 Strongly Correlated Electrons
Superconductivity
Abstract
We use microscopic Bogoliubov-de Gennes formalism to explore the ground-state phase diagram of the single-band attractive Hofstadter-Hubbard model on a square lattice. We show that the interplay between the Hofstadter butterfly and superfluidity breaks spatial symmetry, and gives rise to stripe-ordered superfluid and supersolid phases in large parameter spaces. We also discuss the effects of a trapping potential and comment on the viability of observing stripe-ordered phases with cold Fermi gases.
Keywords
Cite
@article{arxiv.1406.6890,
title = {Stripe-ordered superfluid and supersolid phases in attractive Hofstadter-Hubbard model},
author = {M. Iskin},
journal= {arXiv preprint arXiv:1406.6890},
year = {2015}
}
Comments
4+ pages with 3 figures; to appear in PRA as RC