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Demonstration of unconditional one-way quantum computations for continuous variables

dc.contributor.authorUkai, Ryuji
dc.contributor.authorIwata, Noriaki
dc.contributor.authorShimokawa, Yuji
dc.contributor.authorArmstrong, Seiji
dc.contributor.authorPoliti, Alberto
dc.contributor.authorYoshikawa, Jun-ichi
dc.contributor.authorvan Loock, Peter
dc.contributor.authorFurusawa, Akira
dc.date.accessioned2015-12-10T22:32:21Z
dc.date.available2015-12-10T22:32:21Z
dc.date.issued2011
dc.date.updated2016-02-24T09:10:21Z
dc.description.abstractOne-way quantum computation is a very promising candidate to fulfill the capabilities of quantum information processing. Here we demonstrate an important set of unitary operations for continuous variables using a linear cluster state of four entangled optical modes. These operations are performed in a fully measurement-controlled and completely unconditional fashion. We implement three different levels of squeezing operations and a Fourier transformation, all of which are accessible by selecting the correct quadrature measurement angles of the homodyne detections. Though not sufficient, these linear transformations are necessary for universal quantum computation.
dc.identifier.issn0031-9007
dc.identifier.urihttp://hdl.handle.net/1885/55724
dc.publisherAmerican Physical Society
dc.sourcePhysical Review Letters
dc.subjectKeywords: Cluster state; Continuous variables; Homodyne detection; Of quantum-information; One-way quantum computation; Optical modes; Quadrature measurements; Unitary operation; Data processing; Fourier analysis; Fourier transforms; Linear transformations; Quantum
dc.titleDemonstration of unconditional one-way quantum computations for continuous variables
dc.typeJournal article
local.bibliographicCitation.issue24
local.contributor.affiliationUkai, Ryuji, The University of Toyko
local.contributor.affiliationIwata, Noriaki, The University of Toyko
local.contributor.affiliationShimokawa, Yuji, University of Tokyo
local.contributor.affiliationArmstrong, Seiji, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationPoliti, Alberto, The University of Toyko
local.contributor.affiliationYoshikawa, Jun-ichi, The University of Toyko
local.contributor.affiliationvan Loock, Peter, Max Planck Institute for the Science of Light
local.contributor.affiliationFurusawa, Akira, University of Tokyo
local.contributor.authoruidArmstrong, Seiji, u3950704
local.description.notesImported from ARIES
local.identifier.absfor020603 - Quantum Information, Computation and Communication
local.identifier.absseo970102 - Expanding Knowledge in the Physical Sciences
local.identifier.ariespublicationf5625xPUB338
local.identifier.citationvolume106
local.identifier.doi10.1103/PhysRevLett.106.240504
local.identifier.scopusID2-s2.0-79960669632
local.identifier.thomsonID000291734300001
local.type.statusPublished Version

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