Quantum phase transition in easy-axis antiferromagnetic Heisenberg spin-1 chain

Abstract

The fidelity and entropy in an easy-axis antiferromagnetic Heisenberg spin-1 chain are studied numerically. By using the method of density-matrix renormalization group, the effects of anisotropy on fidelity and entanglement entropy are investigated. Their relations with quantum phase transition are analyzed. It is found that the quantum phase transition from the Haldane spin liquid to Néel spin solid can be well characterized by the fidelity. The phase transition can be hardly detected by the entropy but it can be successfully detected by the first deviation of the entropy.

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Cited by in corpus (7)

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• Non-local correlations in the Haldane phase for an XXZ spin-1 chain: A perspective from infinite matrix product state representation
• Quantum phase transitions in spin-1 XXZ chains with rhombic single-ion anisotropy
• Quantum phase transitions in a spin-1 antiferromagnetic chain with long-range interactions and modulated single-ion anisotropy
• Quantum information analysis of quantum phase transitions in a one-dimensional V1-V2 hard-core-boson model
• Comparative study of the density matrix embedding theory for the Hubbard models
• Entanglement entropy and fidelity susceptibility in the one-dimensional spin-1 XXZ chains with alternating single-site anisotropy