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arXiv:0812.0099 · Physical Review Letters

Zero Temperature Phase Diagram of the Kitaev Model

C. Nash, Denjoe O’Connor

Published Apr 9, 2009• 10 citations
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Abstract

We show that the zero-temperature phase diagram of the vortex free sector of the Kitaev model is in one-to-one correspondence with that of the classical dimer model on the same lattice. We find that the model generically has three distinct phases. On a honeycomb lattice with a 3 x 3 fundamental domain all three phases are accessible. As the couplings are varied, there are two distinct transitions. The new transition is one to a gapped phase that opens up in the interior of the B phase.

DOI
10.1103/physrevlett.102.147203

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