Preparing topological projected entangled pair states on a quantum computer

Simulating exotic phases of matter that are not amenable to classical techniques is one of the most important potential applications of quantum information processing. We present an efficient algorithm for preparing a large class of topological quantum states, the G-injective projected entangled pai...

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Detalles Bibliográficos
Autores: Schwarz, Martin, Temme, Kristan, Verstraete, Frank, Pérez García, David, Cubitt, Toby Stanley
Tipo de recurso: artículo
Fecha de publicación:2013
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/33366
Acceso en línea:https://hdl.handle.net/20.500.14352/33366
Access Level:acceso abierto
Palabra clave:51-73
Física matemática
Descripción
Sumario:Simulating exotic phases of matter that are not amenable to classical techniques is one of the most important potential applications of quantum information processing. We present an efficient algorithm for preparing a large class of topological quantum states, the G-injective projected entangled pair states (PEPS), on a quantum computer. Important examples include the resonant valence bond states, conjectured to be topological spin liquids. The runtime of the algorithm scales polynomially with the condition number of the PEPS projectors and inverse polynomially in the spectral gap of the PEPS parent Hamiltonian.