Exact chiral spin liquid with non-Abelian anyons |
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Authors: | Yao Hong Kivelson Steven A |
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Institution: | Department of Physics, Stanford University, Stanford, California 94305, USA. |
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Abstract: | We establish the existence of a chiral spin liquid (CSL) as the exact ground state of the Kitaev model on a decorated honeycomb lattice, which is obtained by replacing each site in the familiar honeycomb lattice with a triangle. This CSL state spontaneously breaks time reversal symmetry but preserves other symmetries. There are two topologically distinct CSL's separated by a quantum critical point. Interestingly, vortex excitations in the topologically nontrivial (Chern number +/-1) CSL obey non-Abelian statistics. |
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