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Biphoton generation in quadratic waveguide arrays: A classical optical simulation

Gräfe, M; Solntsev, Alexander; Keil, Robert; Sukhorukov, Andrey; Heinrich, Matthias; Tünnermann, Andreas; Nolte, Stefan; Szameit, A; Kivshar, Yuri

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Quantum entanglement became essential in understanding the non-locality of quantum mechanics. In optics, this non-locality can be demonstrated on impressively large length scales, as photons travel with the speed of light and interact only weakly with their environment. Spontaneous parametric down-conversion (SPDC) in nonlinear crystals provides an efficient source for entangled photon pairs, so-called biphotons. However, SPDC can also be implemented in nonlinear arrays of evanescently coupled...[Show more]

dc.contributor.authorGräfe, M
dc.contributor.authorSolntsev, Alexander
dc.contributor.authorKeil, Robert
dc.contributor.authorSukhorukov, Andrey
dc.contributor.authorHeinrich, Matthias
dc.contributor.authorTünnermann, Andreas
dc.contributor.authorNolte, Stefan
dc.contributor.authorSzameit, A
dc.contributor.authorKivshar, Yuri
dc.date.accessioned2015-12-10T23:18:28Z
dc.identifier.issn2045-2322
dc.identifier.urihttp://hdl.handle.net/1885/65638
dc.description.abstractQuantum entanglement became essential in understanding the non-locality of quantum mechanics. In optics, this non-locality can be demonstrated on impressively large length scales, as photons travel with the speed of light and interact only weakly with their environment. Spontaneous parametric down-conversion (SPDC) in nonlinear crystals provides an efficient source for entangled photon pairs, so-called biphotons. However, SPDC can also be implemented in nonlinear arrays of evanescently coupled waveguides which allows the generation and the investigation of correlated quantum walks of such biphotons in an integrated device. Here, we analytically and experimentally demonstrate that the biphoton degrees of freedom are entailed in an additional dimension, therefore the SPDC and the subsequent quantum random walk in one-dimensional arrays can be simulated through classical optical beam propagation in a two-dimensional photonic lattice. Thereby, the output intensity images directly represent the biphoton correlations and exhibit a clear violation of a Bell-like inequality.
dc.publisherNature Publishing Group
dc.rightsAuthor/s retain copyright
dc.sourceScientific Reports
dc.titleBiphoton generation in quadratic waveguide arrays: A classical optical simulation
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume2
dc.date.issued2012
local.identifier.absfor020503 - Nonlinear Optics and Spectroscopy
local.identifier.absfor020500 - OPTICAL PHYSICS
local.identifier.ariespublicationf5625xPUB1136
local.type.statusPublished Version
local.contributor.affiliationGräfe, M, Friedrich-Schiller-Universität
local.contributor.affiliationSolntsev, Alexander , College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationKeil, Robert, Friedrich-Schiller-Universität
local.contributor.affiliationSukhorukov, Andrey, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationHeinrich, Matthias, Friedrich-Schiller-Universität
local.contributor.affiliationTünnermann, Andreas, Friedrich-Schiller-Universität
local.contributor.affiliationNolte, Stefan, Friedrich-Schiller-Universität
local.contributor.affiliationSzameit, A, Friedrich-Schiller-Universität
local.contributor.affiliationKivshar, Yuri, College of Physical and Mathematical Sciences, ANU
local.bibliographicCitation.startpage1
local.bibliographicCitation.lastpage5
local.identifier.doi10.1038/srep00562
dc.date.updated2015-12-10T10:06:46Z
local.identifier.scopusID2-s2.0-84864831354
local.identifier.thomsonID000307874600002
dcterms.accessRightsOpen Access
CollectionsANU Research Publications

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