Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12104/67647
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dc.contributor.authorRoa, L.
dc.contributor.authorHermann-Avigliano, C.
dc.contributor.authorSalazar, R.
dc.contributor.authorKlimov, Andrei B.
dc.date.accessioned2015-11-19T18:52:21Z-
dc.date.available2015-11-19T18:52:21Z-
dc.date.issued2011
dc.identifier.urihttp://hdl.handle.net/20.500.12104/67647-
dc.description.abstractWe find the allowed complex overlaps for N equidistant pure quantum states. The accessible overlaps define a petal-shaped area on the Argand plane. Each point inside the petal represents a set of N linearly independent pure states and each point on its contour represents a set of N linearly dependent pure states. We find the optimal probabilities of success of discriminating unambiguously in which of the N equidistant states the system is. We show that the phase of the involved overlap plays an important role in the probability of success. For a fixed overlap modulus, the success probability is highest for the set of states with an overlap with phase equal to zero. In this case, if the process fails, then the information about the prepared state is lost. For states with a phase different from zero, the information could be obtained with an error-minimizing measurement protocol. © 2011 American Physical Society.
dc.titleConclusive discrimination among N equidistant pure states
dc.typeArticle
dc.identifier.doi10.1103/PhysRevA.84.014302
dc.relation.ispartofjournalPhysical Review A - Atomic, Molecular, and Optical Physics
dc.relation.ispartofvolume84
dc.relation.ispartofissue1
dc.contributor.affiliationRoa, L., Departamento de Física, Universidad de Concepción, Barrio Universitario, Casilla 160-C, Concepción, Chile; Hermann-Avigliano, C., Departamento de Física, Universidad de Concepción, Barrio Universitario, Casilla 160-C, Concepción, Chile; Salazar, R., Departamento de Física, Universidad de Concepción, Barrio Universitario, Casilla 160-C, Concepción, Chile; Klimov, A.B., Departamento de Física, Universidad de Guadalajara, Revolución 1500, 44420 Guadalajara, Jalisco, Mexico
dc.contributor.affiliationKlimov, Andrei B., Universidad de Guadalajara. Centro Universitario de Ciencias Exactas e Ingenierías
dc.relation.isReferencedByScopus
dc.relation.isReferencedByWOS
dc.identifier.urlhttp://www.scopus.com/inward/record.url?eid=2-s2.0-79961114156&partnerID=40&md5=e1e07a11c52252e84e07c2d60b3fc978
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