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Title: Vortex lattices in Bose-Einstein condensates with dipolar interactions beyond the weak-interaction limit

Abstract

We study the ground states of rotating atomic Bose-Einstein condensates with dipolar interactions. We present the results of numerical studies on a periodic geometry which show vortex lattice ground states of various symmetries: triangular and square vortex lattices, stripe crystal, and bubble crystal. We present the phase diagram (for systems with a large number of vortices) as a function of the ratio of dipolar to contact interactions and of the chemical potential. We discuss the experimental requirements for observing transitions between vortex lattice ground states via dipolar interactions. We finally investigate the stability of mean-field supersolid phases of a quasi-two-dimensional nonrotating Bose gas with dipolar interactions.

Authors:
 [1];  [2];  [3]
  1. Theory of Condensed Matter Group, Cavendish Laboratory, J.J. Thomson Avenue, Cambridge CB3 0HE, (United Kingdom)
  2. (Germany)
  3. Theory of Condensed Matter Group, Cavendish Laboratory, J.J. Thomson Avenue, Cambridge CB3 0HE (United Kingdom)
Publication Date:
OSTI Identifier:
20982174
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 75; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevA.75.023623; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BOSE-EINSTEIN CONDENSATION; BOSE-EINSTEIN GAS; BUBBLES; CRYSTAL LATTICES; GROUND STATES; MEAN-FIELD THEORY; NUMERICAL ANALYSIS; PERIODICITY; PHASE DIAGRAMS; POTENTIALS; STABILITY; SYMMETRY; TWO-DIMENSIONAL CALCULATIONS; VORTICES

Citation Formats

Komineas, S., Max-Planck Institute for the Physics of Complex Systems, Noethnitzer Str. 38, 01187, Dresden, and Cooper, N. R. Vortex lattices in Bose-Einstein condensates with dipolar interactions beyond the weak-interaction limit. United States: N. p., 2007. Web. doi:10.1103/PHYSREVA.75.023623.
Komineas, S., Max-Planck Institute for the Physics of Complex Systems, Noethnitzer Str. 38, 01187, Dresden, & Cooper, N. R. Vortex lattices in Bose-Einstein condensates with dipolar interactions beyond the weak-interaction limit. United States. doi:10.1103/PHYSREVA.75.023623.
Komineas, S., Max-Planck Institute for the Physics of Complex Systems, Noethnitzer Str. 38, 01187, Dresden, and Cooper, N. R. Thu . "Vortex lattices in Bose-Einstein condensates with dipolar interactions beyond the weak-interaction limit". United States. doi:10.1103/PHYSREVA.75.023623.
@article{osti_20982174,
title = {Vortex lattices in Bose-Einstein condensates with dipolar interactions beyond the weak-interaction limit},
author = {Komineas, S. and Max-Planck Institute for the Physics of Complex Systems, Noethnitzer Str. 38, 01187, Dresden and Cooper, N. R.},
abstractNote = {We study the ground states of rotating atomic Bose-Einstein condensates with dipolar interactions. We present the results of numerical studies on a periodic geometry which show vortex lattice ground states of various symmetries: triangular and square vortex lattices, stripe crystal, and bubble crystal. We present the phase diagram (for systems with a large number of vortices) as a function of the ratio of dipolar to contact interactions and of the chemical potential. We discuss the experimental requirements for observing transitions between vortex lattice ground states via dipolar interactions. We finally investigate the stability of mean-field supersolid phases of a quasi-two-dimensional nonrotating Bose gas with dipolar interactions.},
doi = {10.1103/PHYSREVA.75.023623},
journal = {Physical Review. A},
number = 2,
volume = 75,
place = {United States},
year = {Thu Feb 15 00:00:00 EST 2007},
month = {Thu Feb 15 00:00:00 EST 2007}
}