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dc.contributor.authorOurjoumtsev, Alexeien_US
dc.contributor.authorFerreyrol, Francken_US
dc.contributor.authorTualle-Brouri, Rosaen_US
dc.contributor.authorGrangier, Philippeen_US
dc.date.accessioned2017-05-03T16:04:17Z
dc.date.available2017-05-03T16:04:17Z
dc.date.issued2009en_US
dc.date.modified2012-07-12T22:48:51Z
dc.identifier.issn1745-2473en_US
dc.identifier.doi10.1038/nphys1199en_US
dc.identifier.urihttp://hdl.handle.net/10072/42751
dc.description.abstract'Schro褩nger cat' states of light1, defined as quantum superpositions of quasi-classical coherent states, have recently emerged as an alternative to single-photon qubits for quantum- information processing2-6. Their richer structure provides significant advantages for quantum teleportation, universal quantum computation, high-precision measurements and fundamental tests of quantum physics7-13 . Local superpositions of free-propagating coherent states have been realized exper- imentally, but their applications were so far limited by their extreme sensitivity to losses, and by the lack of quantum gates for coherent qubit rotations. Here, we demonstrate a simple approach to generating strongly entangled non-local superpositions of coherent states, using a very lossy quantum channel. Such superpositions should be useful for implement- ing coherent qubit-rotation gates, and for teleporting these qubits over long distances. The generation scheme may be extended to creating entangled coherent superpositions with arbitrarily large amplitudes.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_US
dc.format.extent567039 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglishen_US
dc.language.isoen_US
dc.publisherNature Publishing Groupen_US
dc.publisher.placeUnited Kingdomen_US
dc.relation.ispartofstudentpublicationNen_US
dc.relation.ispartofpagefrom189en_US
dc.relation.ispartofpageto192en_US
dc.relation.ispartofjournalNature Physicsen_US
dc.relation.ispartofvolume5en_US
dc.rights.retentionYen_US
dc.subject.fieldofresearchQuantum Opticsen_US
dc.subject.fieldofresearchQuantum Information, Computation and Communicationen_US
dc.subject.fieldofresearchcode020604en_US
dc.subject.fieldofresearchcode020603en_US
dc.titlePreparation of non-local superpositions of quasi-classical light statesen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.rights.copyrightCopyright 2009 Nature Publishing Group. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal website for access to the definitive, published version.en_US
gro.date.issued2009
gro.hasfulltextFull Text


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