Show simple item record

dc.contributor.authorKumar, Shubham
dc.contributor.authorPerego, A.M.
dc.contributor.authorStaliunas, Kestutis
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física
dc.date.accessioned2017-04-05T14:01:12Z
dc.date.available2017-04-05T14:01:12Z
dc.date.issued2017-01-27
dc.identifier.citationKumar, S., Perego, A., Staliunas, K. Linear and Nonlinear Bullets of the Bogoliubov-de Gennes Excitations. "Physical review letters", 27 Gener 2017, vol. 118, núm. 4, p. 1-6.
dc.identifier.issn1079-7114
dc.identifier.urihttp://hdl.handle.net/2117/103389
dc.description.abstractWe report on the focalization of Bogoliubov–de Gennes excitations of the nonlinear Schrödinger equation in the defocusing regime (Gross-Pitaevskii equation for repulsive Bose-Einstein condensates) with a spatially modulated periodic potential. Exploiting the modification of the dispersion relation induced by the modulation, we demonstrate the existence of localized structures of the Bogoliubov–de Gennes excitations, in both the linear and nonlinear regimes (linear and nonlinear “bullets”). These traveling Bogoliubov–de Gennes bullets, localized both spatially and temporally in the comoving reference frame, are robust and propagate remaining stable, without spreading or filamentation. The phenomena reported in this Letter could be observed in atomic Bose-Einstein condensates in the presence of a spatially periodic potential induced by an optical lattice.
dc.format.extent6 p.
dc.language.isoeng
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.lcshSchrödinger equation
dc.titleLinear and Nonlinear Bullets of the Bogoliubov-de Gennes Excitations
dc.typeArticle
dc.subject.lemacSchrödinger, Equació de
dc.contributor.groupUniversitat Politècnica de Catalunya. DONLL - Dinàmica no Lineal, Òptica no Lineal i Làsers
dc.identifier.doi10.1103/PhysRevLett.118.044103
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://journals.aps.org/prl/abstract/10.1103/PhysRevLett.118.044103
dc.rights.accessOpen Access
local.identifier.drac19707764
dc.description.versionPostprint (published version)
local.citation.authorKumar, S.; Perego, A.; Staliunas, K.
local.citation.publicationNamePhysical review letters
local.citation.volume118
local.citation.number4
local.citation.startingPage1
local.citation.endingPage6


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record