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dc.contributor.authorAstrakharchik, Grigori
dc.contributor.authorMalomed, Boris A.
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física
dc.date.accessioned2018-10-08T18:37:50Z
dc.date.available2018-10-08T18:37:50Z
dc.date.issued2018-07-30
dc.identifier.citationAstrakharchik, G., Malomed, B. Dynamics of one-dimensional quantum droplets. "Physical review A", 30 Juliol 2018, vol. 98, núm. 1, p. 1-11.
dc.identifier.issn2469-9926
dc.identifier.urihttp://hdl.handle.net/2117/122026
dc.description.abstractThe structure and dynamics of one-dimensional binary Bose gases forming quantum droplets is studied by solving the corresponding amended Gross-Pitaevskii equation. Two physically different regimes are identified, corresponding to small droplets of an approximately Gaussian shape and large “puddles” with a broad flat-top plateau. Small droplets collide quasielastically, featuring the solitonlike behavior. On the other hand, large colliding droplets may merge or suffer fragmentation, depending on their relative velocity. The frequency of a breathing excited state of droplets, as predicted by the dynamical variational approximation based on the Gaussian ansatz, is found to be in good agreement with numerical results. Finally, the stability diagram for a single droplet with respect to shape excitations with a given wave number is drawn, being consistent with preservation of the Weber number for large droplets.
dc.format.extent11 p.
dc.language.isoeng
dc.publisherAmerican Physical Society (APS)
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.lcshBose-Einstein condensation
dc.subject.lcshSolitons
dc.subject.otherSolitons Spinor Bose-Einstein condensates
dc.titleDynamics of one-dimensional quantum droplets
dc.typeArticle
dc.subject.lemacCondensació de Bose-Einstein
dc.subject.lemacSolitons
dc.contributor.groupUniversitat Politècnica de Catalunya. SIMCON - First-principles approaches to condensed matter physics: quantum effects and complexity
dc.identifier.doi10.1103/PhysRevA.98.013631
dc.relation.publisherversionhttps://journals.aps.org/pra/abstract/10.1103/PhysRevA.98.013631
dc.rights.accessOpen Access
drac.iddocument23332399
dc.description.versionPostprint (author's final draft)
upcommons.citation.authorAstrakharchik, G., Malomed, B.
upcommons.citation.publishedtrue
upcommons.citation.publicationNamePhysical review A
upcommons.citation.volume98
upcommons.citation.number1
upcommons.citation.startingPage1
upcommons.citation.endingPage11


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