Entanglement convertibility by sweeping through the quantum phases of the alternating bonds XXZ chain

  title={Entanglement convertibility by sweeping through the quantum phases of the alternating bonds XXZ chain},
  author={Yu-Chin Tzeng and Li Dai and M. C. Chung and L. Amico and Leong Chuan Kwek},
  journal={Scientific Reports},
We study the entanglement structure and the topological edge states of the ground state of the spin-1/2 XXZ model with bond alternation. We employ parity-density matrix renormalization group with periodic boundary conditions. The finite-size scaling of Rényi entropies S2 and S∞ are used to construct the phase diagram of the system. The phase diagram displays three possible phases: Haldane type (an example of symmetry protected topological ordered phases), Classical Dimer and Néel phases, the… 

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