most citedExact spectrum of the Lipkin-Meshkov-Glick model in the thermodynamic limit and finite-size corrections

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cond-mat.stat-mech2008★ 253 cited

Exact spectrum of the Lipkin-Meshkov-Glick model in the thermodynamic limit and finite-size corrections

P. Ribeiro, J. Vidal, R. Mosseri

The spectrum of the Lipkin-Meshkov-Glick model is exactly derived in the thermodynamic limit by means of a spin coherent states formalism. In the first step, a classical analysis a…