Quantum Correlation in One-dimensional Extend Quantum Compass Model

Abstract

We study the correlations in the one-dimensional extended quantum compass model in a transverse magnetic field. By exactly solving the Hamiltonian, we find that the quantum correlation of the ground state of one-dimensional quantum compass model is vanishing. We show that quantum discord can not only locate the quantum critical points, but also discern the orders of phase transitions. Furthermore, entanglement quantified by concurrence is also compared.

8 pages, 14 figures, to appear in Eur. Phys. J. B

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Cited by in corpus (12)

• Matrix Product State and Quantum Phase Transitions in the One-Dimensional Extended Quantum Compass Model
• Quench dynamics and ground state fidelity of the one-dimensional extended quantum compass model in a transverse field
• Generalized fidelity susceptibility at phase transitions
• Exact treatment of magnetism-driven ferroelectricity in the one-dimensional compass model
• Quantum phase transitions in exactly solvable one-dimensional compass models
• Quantum coherence in a compass chain under an alternating magnetic field
• Symmetry properties and spectra of the two-dimensional quantum compass model
• Quantum phase transitions in the spin-1 Kitaev-Heisenberg chain
• Mechanism of hole propagation in the orbital compass models
• Entanglement and quantum correlations in the XX spin-$1/2$ honeycomb lattice
• From fidelity to entanglement of entropy of the one-dimensional transverse-field quantum compass model
• Quantum phase transitions in spin-1 compass chains