About: Implementation of a spatial two-dimensional quantum random walk with tunable decoherence

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We 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. We 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. (en)
Title	Implementation of a spatial two-dimensional quantum random walk with tunable decoherence Implementation of a spatial two-dimensional quantum random walk with tunable decoherence (en)
skos:prefLabel	Implementation of a spatial two-dimensional quantum random walk with tunable decoherence Implementation of a spatial two-dimensional quantum random walk with tunable decoherence (en)
skos:notation	RIV/61989592:15310/12:33142140!RIV13-MSM-15310___
http://linked.open...avai/predkladatel	Přírodovědecká fakulta
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(ED2.1.00/03.0058), P(OC09026), S
http://linked.open...iv/cisloPeriodika	5
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Svozilík, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Palackého v Olomouci / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	140805
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/12:33142140
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	two-dimensional quantum random, single-qubit, Mach-Zehnder (en)
http://linked.open.../riv/klicoveSlovo	Mach-Zehnder single-qubit two-dimensional quantum random
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[23D072698021]
http://linked.open...i/riv/nazevZdroje	Physical Review A
http://linked.open...in/vavai/riv/obor	BH
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Regional Centre of Advanced Technologies and Materials Photonic-band-gap nonlinear structures as sources of non-classical light.
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	86
http://linked.open...iv/tvurceVysledku	Svozilík, Jiří De J. León-Montiel, R. Torres, Juan P
http://linked.open...ain/vavai/riv/wos	000311542200009
issn	1050-2947
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.1103/PhysRevA.86.052327
http://localhost/t...ganizacniJednotka	15310
is http://linked.open...avai/riv/vysledek of	Implementation of a spatial two-dimensional quantum random walk with tunable decoherence

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