q-deformed variational study of the Lipkin-Meshkov-Glick model via coherent states

Avancini, S. S.; Brunelli, J. C.

Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/64361

Title:

q-deformed variational study of the Lipkin-Meshkov-Glick model via coherent states

Author(s):

Institution:

Universidade Estadual Paulista (UNESP)

ISSN:

0375-9601

Abstract:

We show that the ground-state energy of the q-deformed Lipkin-Meshkov-Glick Hamiltonian can be estimated by q-deformed coherent states. We also use these coherent states to analyse qualitatively the suppression of the second order ground-state energy phase transition of this model. © 1993.

Issue Date:

22-Mar-1993

Citation:

Physics Letters A, v. 174, n. 5-6, p. 358-362, 1993.

Time Duration:

358-362

Source:

http://dx.doi.org/10.1016/0375-9601(93)90190-B

URI:

Access Rights:

Acesso restrito

Type:

outro

Source:

http://repositorio.unesp.br/handle/11449/64361

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