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Localization-delocalization wavepacket transition in Pythagorean aperiodic potentials
dc.contributor.author | Huang, Changming |
dc.contributor.author | Ye, Fangwei |
dc.contributor.author | Chen, Xianfeng |
dc.contributor.author | Kartashov, Yaroslav V. |
dc.contributor.author | Konotop, Vladimir V. |
dc.contributor.author | Torner, Lluis |
dc.contributor.other | Universitat Politècnica de Catalunya. Institut de Ciències Fotòniques |
dc.date.accessioned | 2016-12-15T09:42:51Z |
dc.date.available | 2016-12-15T09:42:51Z |
dc.date.issued | 2016-09-02 |
dc.identifier.citation | Huang, 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.issn | 2045-2322 |
dc.identifier.uri | http://hdl.handle.net/2117/98313 |
dc.description.abstract | We 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.extent | 8 p. |
dc.language.iso | eng |
dc.publisher | Nature |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Física |
dc.subject.lcsh | Optical lattices |
dc.subject.other | wavepacket transition |
dc.title | Localization-delocalization wavepacket transition in Pythagorean aperiodic potentials |
dc.type | Article |
dc.subject.lemac | Fotònica |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://www.nature.com/articles/srep32546 |
dc.rights.access | Open Access |
dc.description.version | Postprint (published version) |
local.citation.publicationName | Scientific Reports |
local.citation.volume | 6 |
local.citation.number | 32546 |
local.citation.startingPage | 1 |
local.citation.endingPage | 8 |
dc.identifier.pmid | 27586011 |
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