About: Quantum walks with random phase shifts

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We investigate quantum walks in multiple dimensions with different quantum coins. We augment the model by assuming that at each step the amplitudes of the coin state are multiplied by random phases. This model enables us to study in detail the role of decoherence in quantum walks and to investigate the quantum-to-classical transition. We also provide classical analog of the quantum random walks studied. Interestingly enough, it turns out that the classical counterparts of some quantum random walks are classical random walks with a memory and biased coin. In addition random phase shifts "simplify" the dynamics (the cross-interference terms of different paths vanish on average) and enable us to give a compact formula for the dispersion of such walks. We investigate quantum walks in multiple dimensions with different quantum coins. We augment the model by assuming that at each step the amplitudes of the coin state are multiplied by random phases. This model enables us to study in detail the role of decoherence in quantum walks and to investigate the quantum-to-classical transition. We also provide classical analog of the quantum random walks studied. Interestingly enough, it turns out that the classical counterparts of some quantum random walks are classical random walks with a memory and biased coin. In addition random phase shifts "simplify" the dynamics (the cross-interference terms of different paths vanish on average) and enable us to give a compact formula for the dispersion of such walks. (en)
Title	Quantum walks with random phase shifts Quantum walks with random phase shifts (en)
skos:prefLabel	Quantum walks with random phase shifts Quantum walks with random phase shifts (en)
skos:notation	RIV/00216224:14330/06:00016170!RIV10-GA0-14330___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA201/04/1153), Z(MSM0021622419)
http://linked.open...iv/cisloPeriodika	No. 2
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Bužek, Vladimír Hillery, Mark
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	Masarykova univerzita / Fakulta informatiky
http://linked.open...dnocenehoVysledku	496226
http://linked.open...ai/riv/idVysledku	RIV/00216224:14330/06:00016170
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	quantum walk (en)
http://linked.open.../riv/klicoveSlovo	quantum walk
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[BD4F4BE047CD]
http://linked.open...i/riv/nazevZdroje	Physical Review A
http://linked.open...in/vavai/riv/obor	BE
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Quantum resources and primitives
http://linked.open...UplatneniVysledku	2006
http://linked.open...v/svazekPeriodika	Vol. 74
http://linked.open...iv/tvurceVysledku	Bužek, Vladimír Hillery, Mark Košík, Jozef
http://linked.open...ain/vavai/riv/wos	000240238300027
http://linked.open...n/vavai/riv/zamer	Highly Parallel and Distributed Computing Systems
issn	1050-2947
number of pages	9 (xsd:int)
http://localhost/t...ganizacniJednotka	14330
is http://linked.open...avai/riv/vysledek of	Quantum walks with random phase shifts Quantum walks with random phase shifts

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