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arXiv · 0906.4469

Compass model on a ladder and square clusters

Wojciech Brzezicki·Andrzej M. Oles
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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.

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Wojciech Brzezicki, Andrzej M. Oles. 2009-06-24. Compass model on a ladder and square clusters. https://doi.org/10.1088/1742-6596%2F200%2F1%2F012017

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