Quantum state transfer in the presence of nonhomogeneous external potentials

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dc.contributor.authorGiorgi, Gian Luca
dc.contributor.authorBusch, Thomas
dc.contributor.funderCompagnia di San Paolo
dc.contributor.funderScience Foundation Ireland
dc.date.accessioned2017-08-22T08:56:57Z
dc.date.available2017-08-22T08:56:57Z
dc.date.issued2013
dc.description.abstractHeisenberg-type spin models in the limit of a low number of excitations are useful tools to study basic mechanisms in strongly correlated and magnetic systems. Many of these mechanisms can be experimentally tested using ultracold atoms. Here, we discuss the implementation of a quantum state transfer protocol in a tight-binding chain in the presence of an inhomogeneous external potential. We show that it can be used to extend the parameter range in which high-fidelity state transfer can be achieved beyond the well established weak-coupling regime. Among the class of mirror-reflecting potentials that allow for high fidelity quantum state transfer, the harmonic case is especially relevant because it allows us to formulate a proposal for the experimental implementation of the protocol in the context of optical lattices.en
dc.description.sponsorshipScience Foundation Ireland (10/IN.1/I2979)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid62309
dc.identifier.citationGiorgi, G. L. and Busch, T. (2013) 'Quantum state transfer in the presence of nonhomogeneous external potentials', Physical Review A, 88(6), 062309. (5pp). doi: 10.1103/PhysRevA.88.062309en
dc.identifier.doi10.1103/PhysRevA.88.062309
dc.identifier.issn1050-2947
dc.identifier.issn1094-1622
dc.identifier.issued6
dc.identifier.journaltitlePhysical Review Aen
dc.identifier.urihttps://hdl.handle.net/10468/4484
dc.identifier.volume88
dc.language.isoenen
dc.publisherAmerican Physical Societyen
dc.relation.urihttps://journals.aps.org/pra/abstract/10.1103/PhysRevA.88.062309
dc.rights© 2013, American Physical Societyen
dc.subjectAtomic mott insulatoren
dc.subjectUltracold atomsen
dc.subjectTransitionen
dc.subjectSuperfluiden
dc.subjectPhaseen
dc.subjectGasen
dc.titleQuantum state transfer in the presence of nonhomogeneous external potentialsen
dc.typeArticle (peer-reviewed)en
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