Multiparticle Entanglement in the Lipkin-Meshkov-Glick Model - Quantum PhysicsReport as inadecuate




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Abstract: The multiparticle entanglement in the Lipkin-Meshkov-Glick model has beendiscussed extensively in this paper. Measured by the global entanglement andits generalization, our calculation shows that the multiparticle entanglementcan faithfully detect quantum phase transitions. For an antiferromagnetic casethe multiparticle entanglement reaches the maximum at the transition point,whereas for ferromagnetic coupling, two different behaviors of multiparticleentanglement can be identified, dependent on the anisotropic parameter in thecoupling.



Author: H. T. Cui

Source: https://arxiv.org/







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