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Nematic order by disorder in spin-2 Bose-Einstein condensates |
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| Authors: | Turner Ari M Barnett Ryan Demler Eugene Vishwanath Ashvin |
| Affiliation: | Department of Physics, Harvard University, Cambridge, MA 02138, USA. |
| 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 |
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