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Nonlinear entanglement and its application to generating cat states

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dc.contributor.authorShen, Y.
dc.contributor.authorAssad, S. M.
dc.contributor.authorGrosse, N. B.
dc.contributor.authorLi, X. Y.
dc.contributor.authorReid, M. D.
dc.contributor.authorLam, P. K.
dc.date.accessioned2015-05-15T02:08:00Z
dc.date.available2015-05-15T02:08:00Z
dc.date.issued2015-03-13
dc.date.updated2016-06-14T08:28:12Z
dc.description.abstractThe Einstein-Podolsky-Rosen (EPR) paradox, which was formulated to argue for the incompleteness of quantum mechanics, has since metamorphosed into a resource for quantum information. The EPR entanglement describes the strength of linear correlations between two objects in terms of a pair of conjugate observables in relation to the Heisenberg uncertainty limit. We propose that entanglement can be extended to include nonlinear correlations. We examine two driven harmonic oscillators that are coupled via third-order nonlinearity can exhibit quadraticlike nonlinear entanglement which, after a projective measurement on one of the oscillators, collapses the other into a cat state of tunable size.
dc.description.sponsorshipThis research is supported by the Australian Research Council (Projects No. CE110001027 and No. DP1092891).en_AU
dc.format5 pages
dc.identifier.issn0031-9007en_AU
dc.identifier.urihttp://hdl.handle.net/1885/13489
dc.publisherAmerican Physical Society
dc.relationhttp://purl.org/au-research/grants/arc/CE110001027
dc.relationhttp://purl.org/au-research/grants/arc/DP1092891
dc.rights© 2015 American Physical Society
dc.rightshttp://www.sherpa.ac.uk/romeo/issn/0031-9007/..."Publisher's version/PDF may be used. On author's personal website, employer's website or institutional repository" from SHERPA/RoMEO site (as at 15/05/15)
dc.sourcePhysical Review Letters
dc.titleNonlinear entanglement and its application to generating cat states
dc.typeJournal article
local.bibliographicCitation.issue10en_AU
local.bibliographicCitation.lastpage100403-5en_AU
local.bibliographicCitation.startpage100403-1en_AU
local.contributor.affiliationAssad, S. M., Research School of Physics and Engineering, The Australian National Universityen_AU
local.contributor.affiliationGrosse, N. B., Research School of Physics and Engineering, The Australian National Universityen_AU
local.contributor.affiliationLam, P. K., Research School of Physics and Engineering, The Australian National Universityen_AU
local.contributor.authoruidu4365678en_AU
local.identifier.absfor020500 - OPTICAL PHYSICS
local.identifier.absfor020600 - QUANTUM PHYSICS
local.identifier.absfor020604 - Quantum Optics
local.identifier.absseo970102 - Expanding Knowledge in the Physical Sciences
local.identifier.ariespublicationa383154xPUB1293
local.identifier.citationvolume114en_AU
local.identifier.doi10.1103/PhysRevLett.114.100403en_AU
local.identifier.scopusID2-s2.0-84925356739
local.publisher.urlhttp://www.aps.org/en_AU
local.type.statusPublished Versionen_AU

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