Kennedy, Tom ; Lieb, Elliott H. ; Sriram Shastry, B. (1988) The XY model has long-range order for all spins and all dimensions greater than one Physical Review Letters, 61 (22). pp. 2582-2584. ISSN 0031-9007
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Official URL: http://prl.aps.org/abstract/PRL/v61/i22/p2582_1
Related URL: http://dx.doi.org/10.1103/PhysRevLett.61.2582
Abstract
The quantum XY model of interacting spins on a hypercubic lattice has long-range order in the ground state for all values of the spin and all dimensions greater than one. We also show that in the limit of high dimension the spontaneous magnetization converges to the spontaneous magnetization of the Néel state.
| Item Type: | Article |
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| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 50834 |
| Deposited On: | 27 Jul 2011 13:14 |
| Last Modified: | 18 May 2016 04:59 |
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