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dc.contributor.authorAstrakharchik, Grigori
dc.contributor.authorSchmidt, Richard
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física
dc.date.accessioned2021-07-13T15:14:49Z
dc.date.available2021-07-13T15:14:49Z
dc.date.issued2021-05-11
dc.identifier.citationAstrakharchik, G.; Schmidt, R. Ionic polaron in a Bose-Einstein condensate. "Communications Physics", 11 Maig 2021, vol. 4, núm. 94, p. 1-8.
dc.identifier.issn2399-3650
dc.identifier.urihttp://hdl.handle.net/2117/349220
dc.description.abstractThe presence of strong interactions in a many-body quantum system can lead to a variety of exotic effects. Here we show that even in a comparatively simple setup consisting of a charged impurity in a weakly interacting bosonic medium the competition of length scales gives rise to a highly correlated mesoscopic state. Using quantum Monte Carlo simulations, we unravel its vastly different polaronic properties compared to neutral quantum impurities. Moreover, we identify a transition between the regime amenable to conventional perturbative treatment in the limit of weak atom-ion interactions and a many-body bound state with vanishing quasi-particle residue composed of hundreds of atoms. In order to analyze the structure of the corresponding states, we examine the atom-ion and atom-atom correlation functions which both show nontrivial properties. Our findings are directly relevant to experiments using hybrid atom-ion setups that have recently attained the ultracold regime.
dc.format.extent8 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.lcshBose-Einstein condensation
dc.subject.otherBose–Einstein condensates
dc.subject.otherMatter waves and particle beams
dc.titleIonic polaron in a Bose-Einstein condensate
dc.typeArticle
dc.subject.lemacCondensació de Bose-Einstein
dc.contributor.groupUniversitat Politècnica de Catalunya. SIMCON - First-principles approaches to condensed matter physics: quantum effects and complexity
dc.identifier.doi10.1038/s42005-021-00597-1
dc.relation.publisherversionhttps://www.nature.com/articles/s42005-021-00597-1
dc.rights.accessOpen Access
local.identifier.drac31890831
dc.description.versionPostprint (published version)
local.citation.authorAstrakharchik, G.; Schmidt, R.
local.citation.publicationNameCommunications Physics
local.citation.volume4
local.citation.number94
local.citation.startingPage1
local.citation.endingPage8


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