Bulletin of the American Physical Society
APS March Meeting 2010
Volume 55, Number 2
Monday–Friday, March 15–19, 2010; Portland, Oregon
Session A31: Spinor Degrees of Freedom and Rotation in Quantum Gases
8:00 AM–11:00 AM,
Monday, March 15, 2010
Sponsoring Unit: DAMOP
Chair: Richard Scalettar, University of California, Davis
Abstract ID: BAPS.2010.MAR.A31.14
Abstract: A31.00014 : Unusual states of vortex matter in mixtures of Bose--Einstein Condensates on rotating optical lattices*
10:36 AM–10:48 AM
Preview Abstract Abstract
(UMass Amherst and KTH Stockholm)
A striking property of a single-component superfluid under rotation, is that a broken symmetry in the order parameter results in a broken translational symmetry, a vortex lattice. If translational symmetry is restored, the phase of the order parameter disorders and the broken symmetry in the order parameter is restored. We show that for Bose-Condensate mixtures on optical lattices (which may possess a negative dissipationless intercomponent drag), a new situation arises. A phase disordered nonsuperfluid component can break translational symmetry in response to rotation due to interaction with a superfluid component. This state is a modulated vortex liquid which breaks translational symmetry in the direction transverse to the rotation vector.
*Supported by Research Council of Norway.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2010.MAR.A31.14
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