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N-dimensional alternate coined quantum walks from a dispersion-relation perspective

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N-dimensional alternate coined quantum walks from a dispersion-relation perspective

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dc.contributor.author Roldán Serrano, Eugenio
dc.contributor.author Di Franco, Carlo
dc.contributor.author Silva Vázquez, Fernando
dc.contributor.author Valcárcel Gonzalvo, Germán J. de
dc.date.accessioned 2014-11-12T09:44:15Z
dc.date.available 2014-11-12T09:44:15Z
dc.date.issued 2013
dc.identifier.citation Roldán Serrano, Eugenio Di Franco, Carlo Silva Vázquez, Fernando Valcárcel Gonzalvo, Germán J. de 2013 N-dimensional alternate coined quantum walks from a dispersion-relation perspective Physical Review A 87 022336-1 022336-5
dc.identifier.uri http://hdl.handle.net/10550/39738
dc.description.abstract We suggest an alternative definition of N-dimensional coined quantum walk by generalizing a recent proposal [Di Franco et al., Phys. Rev. Lett. 106, 080502 (2011)]. This N-dimensional alternate quantum walk, AQW(N), in contrast with the standard definition of the N-dimensional quantum walk, QW(N), requires only a coin qubit. We discuss the quantum diffusion properties of AQW(2) and AQW(3) by analyzing their dispersion relations that reveal, in particular, the existence of diabolical points. This allows us to highlight interesting similarities with other well-known physical phenomena. We also demonstrate that AQW(3) generates considerable genuine multipartite entanglement. Finally, we discuss the implementability of AQW(N).
dc.language.iso eng
dc.relation.ispartof Physical Review A, 2013, vol. 87, p. 022336-1-022336-5
dc.subject Òptica quàntica
dc.title N-dimensional alternate coined quantum walks from a dispersion-relation perspective
dc.type journal article es_ES
dc.date.updated 2014-11-12T09:44:15Z
dc.identifier.doi 10.1103/PhysRevA.87.022336
dc.identifier.idgrec 097487
dc.rights.accessRights open access es_ES

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