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arXiv:0707.4262 · Physical Review Letters

Spin Hamiltonian for which the Chiral Spin Liquid is the Exact Ground State

Darrell F. Schroeter, Eliot Kapit, Ronny Thomale, Martin Greiter

Published Aug 29, 2007• 151 citations
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Abstract

We construct a Hamiltonian that singles out the chiral spin liquid on a square lattice with periodic boundary conditions as the exact and, apart from the twofold topological degeneracy, unique ground state.
DOI
10.1103/physrevlett.99.097202

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