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A remark on the condensation in the hard-core lattice Bose gas |
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| Authors: | N. Angelescu M. Bundaru |
| Affiliation: | (1) URA 212, UFR de Mathématiques, Université Paris 7, Paris, France;(2) Present address: Department of Theoretical Physics, Institute for Atomic Physics, P.O. Box MG-6, Bucharest, Romania |
| Abstract: | We point out that Bose-Einstein condensation occurs at sufficiently low temperature in a hard-core  d-lattice Bose gas for d 3 and particle density 1/2, by exploiting its equivalence to a spin-1/2XY model. |
| Keywords: | Lattice Bose gas hard-core interaction Bose-Einstein condensation |
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