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dc.contributor.authorMartín-Vázquez, Gonzalo
dc.contributor.authorRodríguez-Laguna, Javier
dc.date.accessioned2021-11-03T11:55:32Z
dc.date.available2021-11-03T11:55:32Z
dc.date.issued2020
dc.identifier.issn1050-2947spa
dc.identifier.urihttp://hdl.handle.net/10641/2566
dc.description.abstractWe devise a protocol to build 1D time-dependent quantum walks in 1D maximizing the spatial spread throughout the procedure. We allow only one of the physical parameters of the coin-tossing operator to vary, i.e. the angle θ, such that for θ = 0 we have the ˆσz, while for θ = π/4 we obtain the Hadamard gate. The optimal θ sequences present non-trivial patterns, with mostly θ ≈ 0 alternated with θ ≈ π/4 values after increasingly long periods. We provide an analysis of the entanglement properties, quasi-energy spectrum and survival probability, providing a full physical picture.spa
dc.language.isoengspa
dc.publisherPhysical Review Aspa
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.titleOptimizing the spatial spread of a quantum walk.spa
dc.typearticlespa
dc.description.versionpeer-reviewedspa
dc.rights.accessRightsopenAccessspa
dc.description.extent1,34 MBspa
dc.identifier.doi10.1103/PhysRevA.102.022223spa
dc.relation.publisherversionhttps://journals.aps.org/pra/abstract/10.1103/PhysRevA.102.022223spa


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