Abstract.
In this paper, von Neumann entropy is used to study three kinds of bipartite qutrit model, which represent SU(3) strongly correlated model, three-level Lipkin-Meshkov-Glick model, and spin-1 model. The relation between the ground-state entanglement and the quantum phase transition in those models is exhibited and the connection between the entanglement extremes and the symmetries is also discussed.
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Zhu, GQ., Zhao, X. & Li, YQ. Entanglement of two-qutrit system. Eur. Phys. J. B 44, 359–364 (2005). https://doi.org/10.1140/epjb/e2005-00134-3
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DOI: https://doi.org/10.1140/epjb/e2005-00134-3