Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2010-10-19
Physics
Condensed Matter
Strongly Correlated Electrons
6 pages, 2 figures
Scientific paper
We use high-temperature series expansions to obtain thermodynamic properties of the quantum compass model, and to investigate the phase transition on the square and simple cubic lattices. On the square lattice we obtain evidence for a phase transition, consistent with recent Monte Carlo results. On the simple cubic lattice the same procedure provides no sign of a transition, and we conjecture that there is no ?nite temperature transition in this case.
Hamer Chris J.
Oitmaa Jaan
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