Abstract
We point out that Bose-Einstein condensation occurs at sufficiently low temperature in a hard-core ℤd-lattice Bose gas for d⩾3 and particle density 1/2, by exploiting its equivalence to a spin-1/2XY model.
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Angelescu, N., Bundaru, M. A remark on the condensation in the hard-core lattice Bose gas. J Stat Phys 69, 897–903 (1992). https://doi.org/10.1007/BF01050441
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DOI: https://doi.org/10.1007/BF01050441