Classifying Novel Phases of Spinor Atoms
- Creators
- Barnett, Ryan
- Turner, Ari
- Demler, Eugene
Abstract
We consider many-body states of bosonic spinor atoms which, at the mean-field level, can be characterized by a single-particle wave function for the Bose-Einstein condensation and Mott insulating states. We describe and apply a classification scheme that makes explicit the spin symmetries of such states and enables one to naturally analyze their collective modes and topological excitations. Quite generally, the method allows classification of a spin F system as a polyhedron with 2F vertices. We apply the method to the many-body states of bosons with spins two and three. For spin-two atoms we find the ferromagnetic state, a continuum of nematic states, and a state having the symmetry of the point group of the regular tetrahedron. For spin-three atoms we obtain similar ferromagnetic and nematic phases as well as states having symmetries of various types of polyhedra with six vertices.
Additional Information
©2006 The American Physical Society (Received 9 July 2006; published 3 November 2006) This work was supported by the NSF Grant No. DMR-0132874 and the Harvard-MIT CUA. We thank T.-L. Ho, A. Imambekov, A. Kolezhuk, M. Lewenstein, and S. Sachdev for useful discussions.Files
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Additional details
- Eprint ID
- 6187
- Resolver ID
- CaltechAUTHORS:BARprl06
- Created
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2006-11-28Created from EPrint's datestamp field
- Updated
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2021-11-08Created from EPrint's last_modified field