A Dual-Species Bose-Einstein Condensate with Attractive Interspecies Interactions
dc.contributor.author | Burchianti, Alessia | |
dc.contributor.author | D’Errico, Chiara | |
dc.contributor.author | Prevedelli, Marco | |
dc.contributor.author | Salasnich, Luca | |
dc.contributor.author | Ancilotto, Francesco | |
dc.contributor.author | Modugno, Michele | |
dc.contributor.author | Minardi, Francesco | |
dc.contributor.author | Fort, Chiara | |
dc.date.accessioned | 2020-03-31T18:35:55Z | |
dc.date.available | 2020-03-31T18:35:55Z | |
dc.date.issued | 2020-03-21 | |
dc.identifier.citation | Condensed Matter 5(1) : (2020) // Article ID 21 | es_ES |
dc.identifier.issn | 2410-3896 | |
dc.identifier.uri | http://hdl.handle.net/10810/42545 | |
dc.description.abstract | We report on the production of a 41 K- 87 Rb dual-species Bose–Einstein condensate with tunable interspecies interaction and we study the mixture in the attractive regime; i.e., for negative values of the interspecies scattering length a12 . The binary condensate is prepared in the ground state and confined in a pure optical trap. We exploit Feshbach resonances for tuning the value of a12 . After compensating the gravitational sag between the two species with a magnetic field gradient, we drive the mixture into the attractive regime. We let the system evolve both in free space and in an optical waveguide. In both geometries, for strong attractive interactions, we observe the formation of self-bound states, recognizable as quantum droplets. Our findings prove that robust, long-lived droplet states can be realized in attractive two-species mixtures, despite the two atomic components possibly experiencing different potentials | es_ES |
dc.description.sponsorship | This research was funded by the European Commission through FET Flagship on Quantum Technologies—Qombs Project (grant number 820419) and by Fondazione Cassa di Risparmio Firenze through project “SUPERACI-Superfluid Atomic Circuits.” M.M. acknowledges support from the Spanish Ministry of Science, Innovation and Universities and the European Regional Development Fund FEDER through grant number PGC2018-101355-B-I00 (MCIU/AEI/FEDER, UE), and the Basque Government through grant number IT986-16. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/820419 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MCIU/PGC2018-101355-B-I00 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | |
dc.subject | mixture of quantum gases | es_ES |
dc.subject | multicomponent superfluids | es_ES |
dc.subject | quantum fluids | es_ES |
dc.title | A Dual-Species Bose-Einstein Condensate with Attractive Interspecies Interactions | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.date.updated | 2020-03-27T14:53:24Z | |
dc.rights.holder | © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). | es_ES |
dc.relation.publisherversion | https://www.mdpi.com/2410-3896/5/1/21 | es_ES |
dc.identifier.doi | 10.3390/computation8010017 | |
dc.contributor.funder | European Commission | |
dc.departamentoes | Física teórica e historia de la ciencia | |
dc.departamentoeu | Fisika teorikoa eta zientziaren historia |
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Except where otherwise noted, this item's license is described as © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).