Publication: Nematic Order by Disorder in Spin-2 Bose-Einstein Condensates
Loading...
Open/View Files
Date
2007
Published Version
Journal Title
Journal ISSN
Volume Title
Publisher
American Physical Society (APS)
The Harvard community has made this article openly available. Please share how this access benefits you.
Citation
Turner, Ari M., Ryan Barnett, Eugene Demler, and Ashvin Vishwanath. 2007. “Nematic Order by Disorder in Spin-2 Bose-Einstein Condensates.” Physical Review Letters 98 (19) (May 11). doi:10.1103/physrevlett.98.190404.
Abstract
We show that quantum and thermal fluctuations in spin-2 Bose-Einstein condensates lift the accidental degeneracy of the mean-field phase diagram. Fluctuations select the uniaxial (square biaxial) nematic state for scattering lengths a4 > a2 (a4 < a2). Paradoxically, the order is stronger at higher temperatures. For spin-2 87Rb and 23Na, a continuous Ising-type transition is predicted on raising the magnetic field, from a fluctuation stabilized uniaxial state to a field stabilized square biaxial order state. This is a promising experimental system to realize the ‘‘order-by-disorder’’ phenomenon.
Description
Other Available Sources
Research Data
Keywords
Terms of Use
This article is made available under the terms and conditions applicable to Other Posted Material (LAA), as set forth at Terms of Service