Título:
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Gapless Hamiltonians for the Toric Code Using the Projected Entangled Pair State Formalism
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Autores:
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Fernández González, Carlos ;
Schuch, Norbert ;
Wolf, Michael M. ;
Cirac, J.I. ;
Pérez García, David
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Tipo de documento:
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texto impreso
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Editorial:
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American Physical Society, 2012-12
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Matemáticas
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Tipo = Artículo
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Resumen:
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We study Hamiltonians which have Kitaev's toric code as a ground state, and show how to construct a Hamiltonian which shares the ground space of the toric code, but which has gapless excitations with a continuous spectrum in the thermodynamic limit. Our construction is based on the framework of projected entangled pair states, and can be applied to a large class of two-dimensional systems to obtain gapless "uncle Hamiltonians."
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En línea:
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https://eprints.ucm.es/id/eprint/19863/1/PhysRevLett.109.260401.pdf
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