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dc.contributor.authorHuang, Changming
dc.contributor.authorYe, Fangwei
dc.contributor.authorChen, Xianfeng
dc.contributor.authorKartashov, Yaroslav V.
dc.contributor.authorKonotop, Vladimir V.
dc.contributor.authorTorner, Lluis
dc.contributor.otherUniversitat Politècnica de Catalunya. Institut de Ciències Fotòniques
dc.date.accessioned2016-12-15T09:42:51Z
dc.date.available2016-12-15T09:42:51Z
dc.date.issued2016-09-02
dc.identifier.citationHuang, Changming [et al.]. Localization-delocalization wavepacket transition in Pythagorean aperiodic potentials. "Scientific Reports", 2 Setembre 2016, vol. 6, núm. 32546, p. 1-8.
dc.identifier.issn2045-2322
dc.identifier.urihttp://hdl.handle.net/2117/98313
dc.description.abstractWe introduce a composite optical lattice created by two mutually rotated square patterns and allowing observation of continuous transformation between incommensurate and completely periodic structures upon variation of the rotation angle θ. Such lattices acquire periodicity only for rotation angles cosθ=a/c, sinθ=b/c, set by Pythagorean triples of natural numbers (a, b, c). While linear eigenmodes supported by lattices associated with Pythagorean triples are always extended, composite patterns generated for intermediate rotation angles allow observation of the localizationdelocalization transition of eigenmodes upon modification of the relative strength of two sublattices forming the composite pattern. Sharp delocalization of supported modes for certain θ values can be used for visualization of Pythagorean triples. The effects predicted here are general and also take place in composite structures generated by two rotated hexagonal lattices
dc.format.extent8 p.
dc.language.isoeng
dc.publisherNature
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Física
dc.subject.lcshOptical lattices
dc.subject.otherwavepacket transition
dc.titleLocalization-delocalization wavepacket transition in Pythagorean aperiodic potentials
dc.typeArticle
dc.subject.lemacFotònica
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://www.nature.com/articles/srep32546
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
local.citation.publicationNameScientific Reports
local.citation.volume6
local.citation.number32546
local.citation.startingPage1
local.citation.endingPage8
dc.identifier.pmid27586011


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