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dc.contributor.authorSvozilik, Jiri
dc.contributor.authorLeón Montiel, R.D.J.
dc.contributor.authorPérez Torres, Juan
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.date.accessioned2013-07-10T14:17:25Z
dc.date.available2013-07-10T14:17:25Z
dc.date.created2012-11
dc.date.issued2012-11
dc.identifier.citationSvozilik, J.; León, R.; Perez, J. Implementation of a spatial two-dimensional quantum random walk with tunable decoherence. "Physical review A", Novembre 2012, vol. 86, núm. 5, p. 1-6.
dc.identifier.issn1050-2947
dc.identifier.urihttp://hdl.handle.net/2117/19898
dc.description.abstractWe put forward a versatile and highly scalable experimental setup for the realization of discrete two-dimensional quantum random walks with a single-qubit coin and tunable degree of decoherence. The proposed scheme makes use of a small number of simple optical components arranged in a multipath Mach-Zehnder-like configuration, where a weak coherent state is injected. Environmental effects (decoherence) are generated by a spatial light modulator, which introduces pure dephasing in the transverse spatial plane perpendicular to the direction of propagation of the light beam. By controlling the characteristics of this dephasing, one can explore a great variety of scenarios of quantum random walks: pure quantum evolution (ballistic spread), fast fluctuating environment leading to a diffusive classical random walk, and static disorder resulting in the observation of Anderson localization
dc.format.extent6 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica
dc.subjectÀrees temàtiques de la UPC::Física::Física de partícules::Fotons
dc.subject.lcshPhotons
dc.titleImplementation of a spatial two-dimensional quantum random walk with tunable decoherence
dc.typeArticle
dc.subject.lemacFotons
dc.contributor.groupUniversitat Politècnica de Catalunya. FOTONICA - Grup de Recerca de Fotònica
dc.identifier.doi10.1103/PhysRevA.86.052327
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://pra.aps.org/abstract/PRA/v86/i5/e052327
dc.rights.accessOpen Access
local.identifier.drac11211700
dc.description.versionPostprint (published version)
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/FP7/255914/EU/A Toolbox for Photon Orbital Angular Momentum Technology/PHORBITECH
local.citation.authorSvozilik, J.; León, R.; Perez, J.
local.citation.publicationNamePhysical review A
local.citation.volume86
local.citation.number5
local.citation.startingPage1
local.citation.endingPage6


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