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Quantum walk with a time-dependent coin

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Quantum walk with a time-dependent coin

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dc.contributor.author	Bañuls Polo, María Carmen
dc.contributor.author	Navarrete Benlloch, Carlos
dc.contributor.author	Pérez Cañellas, Armando
dc.contributor.author	Roldán Serrano, Eugenio
dc.contributor.author	Soriano, J. C.
dc.date.accessioned	2014-02-10T11:27:34Z
dc.date.available	2014-02-10T11:27:34Z
dc.date.issued	2006
dc.identifier.citation	Bañuls Polo, María Carmen Navarrete, C. Pérez Cañellas, Armando Roldán Serrano, Eugenio Soriano, J.C. 2006 Physical Review A 73 6 062304 062304-9
dc.identifier.uri	http://hdl.handle.net/10550/32834
dc.description.abstract	We introduce quantum walks with a time-dependent coin, and show how they include, as a particular case, the generalized quantum walk recently studied by Wojcik [Phys. Rev. Lett. 93, 180601 (2004)] which exhibits interesting dynamical localization and quasiperiodic dynamics. Our proposal allows for a much easier implementation of this particularly rich dynamics than the original one. Moreover, it allows for an additional control on the walk, which can be used to compensate for phases appearing due to external interactions. To illustrate its feasibility, we discuss an example using an optical cavity. We also derive an approximated solution in the continuous limit (long-wavelength approximation) which provides physical insight about the process.
dc.relation.ispartof	Physical Review A, 2006, vol. 73, num. 6, p. 062304-062304-9
dc.subject	Òptica quàntica
dc.subject	Camps, Teoria quàntica de
dc.title	Quantum walk with a time-dependent coin
dc.type	journal article	es_ES
dc.date.updated	2014-02-10T11:27:34Z
dc.identifier.doi	10.1103/PhysRevA.73.062304
dc.identifier.idgrec	041263
dc.rights.accessRights	open access	es_ES