The Thermodynamical Limit of the Lipkin-Meshkov-Glick Model
classification
❄️ cond-mat.stat-mech
nucl-thquant-ph
keywords
limitlipkin-meshkov-glickmodelthermodynamicalanalyziscomputedifferentdistinguishes
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A method based on the analyzis of the Majorana polynomial roots is introduced to compute the spectrum of the Lipkin-Meshkov-Glick model in the thermodynamical limit. A rich structure made of four qualitatively different regions is revealed in the parameter space whereas the ground state study only distinguishes between two phases.
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