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Do Attractive Bosons Condense?
Open accessAbstract
Motivated by experiments on Bose atoms in traps which have attractive interactions (e.g., ${}^{7}\mathrm{Li}$), we consider two models which may be solved exactly. We construct the ground states subject to the constraint that the system is rotating with angular momentum proportional to the number of atoms. In a conventional system this would lead to quantized vortices; here, for attractive interactions, we find that the angular momentum is absorbed by the center of mass motion. Moreover, the state is uncondensed and is an example of a ``fragmented'' condensate discussed by Nozi\`eres and Saint James. The same models with repulsive interactions are fully condensed in the thermodynamic limit.
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Cited by
Non-Abelian anyons and topological quantum computation
Nayak, C., Simon, S. H., Stern, A., Freedman, M., & Das Sarma, S. (2008) · Reviews of Modern Physics · doi:10.1103/revmodphys.80.1083 · Cited by 6,861
Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond
Lewenstein, M., Sanpera, A., Ahufinger, V., Damski, B., Sen(De), A., & Sen, U. (2007) · Advances in Physics · doi:10.1080/00018730701223200 · Cited by 2,104
Condensation of “Composite Bosons” in a Rotating BEC
Wilkin, N. K., & Gunn, J. M. F. (2000) · Physical Review Letters · doi:10.1103/physrevlett.84.6 · Cited by 273
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Metadata
- Authors
- Wilkin, N. K., Gunn, J. M. F., & Smith, R. A.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 1998-03-16
- Volume
- 80
- Issue
- 11
- Pages
- 2265-2268
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W1983653625
- Cited by
- 263
- References
- 0
- FWCI
- 11.29
- Type
- journal article
- Language
- en
- Open access
- green
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