Bell-Type Correlation at Quantum Phase Transitions in Spin-1 Chain

@article{Lee2020BellTypeCA,
  title={Bell-Type Correlation at Quantum Phase Transitions in Spin-1 Chain},
  author={Dongkeun Lee and Wonmin Son},
  journal={Entropy},
  year={2020},
  volume={22}
}
For the identification of non-trivial quantum phase, we exploit a Bell-type correlation that is applied to the one-dimensional spin-1 XXZ chain. It is found that our generalization of bipartite Bell correlation can take a decomposed form of transverse spin correlation together with high-order terms. The formulation of the density-matrix renormalisation group is utilized to obtain the ground state of a given Hamiltonian with non-trivial phase. Subsequently Bell-type correlation is evaluated… Expand

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