Compass model on a ladder and square clusters

Abstract

We obtained exact heat capacities of the quantum compass model on the square L x L clusters with L=2,3,4,5 using Kernel Polynomial Method and compare them with heat capacity of a large compass ladder. Intersite correlations found in the ground state for these systems demonstrate that the quantum compass model differs from its classical version.

4 pages, 2 figures, submitted to J. Phys. Conf. Series

References in corpus (4)

• Multi-scale Entanglement Renormalization Ansatz in Two Dimensions: Quantum Ising Model
• Monte Carlo simulations of the directional-ordering transition in the two-dimensional classical and quantum compass model
• Multicriticality and entanglement in the one-dimensional quantum compass model
• Exact solution for a quantum compass ladder

Cited by in corpus (8)

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• Hidden dimer order in the quantum compass model
• Exact treatment of magnetism-driven ferroelectricity in the one-dimensional compass model
• Symmetry properties and spectra of the two-dimensional quantum compass model
• Quantum phase transitions in the exactly solved spin-1/2 Heisenberg-Ising ladder
• Spin, orbital and topological order in models of strongly correlated electrons
• Mechanism of hole propagation in the orbital compass models
• True nature of long-range order in a plaquette orbital model