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dc.contributor.authorHuelga, S.en_US
dc.contributor.authorPlenio, M.en_US
dc.contributor.authorVaccaro, J.en_US
dc.date.accessioned2017-05-03T11:16:22Z
dc.date.available2017-05-03T11:16:22Z
dc.date.issued2002en_US
dc.date.modified2009-09-03T07:17:56Z
dc.identifier.issn10941622en_US
dc.identifier.doi10.1103/PhysRevA.65.042316en_AU
dc.identifier.urihttp://hdl.handle.net/10072/21507
dc.description.abstractWe study the remote implementation of a unitary transformation on the state of a qubit. We show the existence of nontrivial protocols (i.e., using less resources than bidirectional state teleportation) that allow the perfect remote implementation of certain continuous sets of quantum operations. We prove that, up to a local change of basis, only two subsets exist that can be implemented remotely with a nontrivial protocol: Arbitrary rotations around a fixed direction n? and a p rotation about an arbitrary direction lying in a plane orthogonal to n?. The former operations effectively constitute the teleportation of arbitrary angles. The overall classical information and distributed entanglement cost required for the remote implementation depends on whether it is known, a priori, in which of the two teleportable subsets the transformation belongs. If it is known, the optimal protocol consumes one e-bit of entanglement and one c-bit in each direction. If it is not known in which subset the transformation belongs, two e-bits of entanglement need to be consumed and the classical channel becomes asymmetric with two c-bits being conveyed from Alice to Bob but only one from Bob to Alice.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_AU
dc.format.extent197136 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglishen_US
dc.language.isoen_AU
dc.publisherAmerican Physical Societyen_US
dc.publisher.placeRidge, NYen_US
dc.publisher.urihttp://pra.aps.org/en_AU
dc.relation.ispartofpagefrom042316-1en_US
dc.relation.ispartofpageto042316-12en_US
dc.relation.ispartofissue4en_US
dc.relation.ispartofjournalPhysical Review A (Atomic, Molecular and Optical Physics)en_US
dc.relation.ispartofvolume65en_US
dc.subject.fieldofresearchcode240201en_US
dc.titleRemote control of restricted sets of operations: Teleportation of anglesen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.rights.copyrightCopyright 2002 American Physical Society. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal link for access to the definitive, published version.en_AU
gro.date.issued2002
gro.hasfulltextFull Text


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