Exact bounds on the critical frustration in the Shastry-Sutherland Model

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We discuss the phase diagram of the Shastry-Sutherland model for arbitrary spin S and derive rigorous lower and upper bounds on the phase boundaries of the dimer phase by using various versions of a variational ansatz in combination with the exact diagonalisation method.
13 pages, 8 figures

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Statistical Mechanics

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http://salesiana.dossiersoluciones.com/handle/123456789/17629

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0104385
 http://arxiv.org/abs/cond-mat/0104385

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arXiv