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

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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 two-fold topological degeneracy, unique ground state.
5 pages, no figures

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Strongly Correlated Electrons, Mesoscale and Nanoscale Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/137583

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0707.4262
 http://arxiv.org/abs/0707.4262
 Phys. Rev. Lett. 99, 097202 (2007)
 doi:10.1103/PhysRevLett.99.097202

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arXiv