Sriram Shastry, B. (1988) Exact solution of an S=½ Heisenberg antiferromagnetic chain with long-ranged interactions Physical Review Letters, 60 (7). pp. 639-642. ISSN 0031-9007
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Official URL: http://prl.aps.org/abstract/PRL/v60/i7/p639_1
Related URL: http://dx.doi.org/10.1103/PhysRevLett.60.639
Abstract
The S=½ Heisenberg Hamiltonian H = ½ N - 1Σn = 1NΣm = 1 Jn σM · σm+n with Jn=J0/sin2 (nπ/N), is shown to have a simple singlet ground state in the form of a Jastrow function. The spectrum and correlations are explicitly known and the magnetic susceptibility is shown to be Pauli type at T=0. The model has a striking similarity to the nearest-neighbor isotropic Heisenberg model and may be viewed as a discretized version of the Sutherland-Calogero-Moser system.
Item Type: | Article |
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Source: | Copyright of this article belongs to The American Physical Society. |
ID Code: | 50839 |
Deposited On: | 27 Jul 2011 13:14 |
Last Modified: | 18 May 2016 05:00 |
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