Tunable dipolar resonances and Einstein-de Haas effect in a 87Rb-atom condensate

2011
journal article
article
20
cris.lastimport.wos2024-04-10T01:13:11Z
dc.abstract.enWe theoretically study a spinor condensate of Rb87 atoms in a F=1 hyperfine state confined in an optical dipole trap. Putting initially all atoms in an mF=1, component we observe a significant transfer of atoms to other, initially empty Zeeman states exclusively due to dipolar forces. Because of conservation of a total angular momentum the atoms going to other Zeeman components acquire an orbital angular momentum and circulate around the center of the trap. This is a realization of the Einstein-de Haas effect in a system of cold gases. We show that the transfer of atoms via dipolar interactions is possible only when the energies of the initial and the final sates are equal. This condition can be fulfilled utilizing a resonant external magnetic field, which tunes energies of involved states via the linear Zeeman effect. We found that there are many final states of different spatial density, which can be tuned selectively to the initial state. We show a simple model explaining high selectivity and controllability of weak dipolar interactions in the condensate of Rb87 atoms.pl
dc.affiliationWydział Lekarski : Zakład Histologiipl
dc.affiliationWydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiegopl
dc.contributor.authorŚwisłocki, Tomaszpl
dc.contributor.authorSowiński, Tomaszpl
dc.contributor.authorPietraszewicz, Joannapl
dc.contributor.authorBrewczyk, Mirosławpl
dc.contributor.authorLewenstein, Maciejpl
dc.contributor.authorZakrzewski, Jakub - 100023 pl
dc.contributor.authorGajda, Mariusz - 129426 pl
dc.date.accessioned2015-01-15T11:00:53Z
dc.date.available2015-01-15T11:00:53Z
dc.date.issued2011pl
dc.description.number6pl
dc.description.volume83pl
dc.identifier.articleid063617pl
dc.identifier.doi10.1103/PhysRevA.83.063617pl
dc.identifier.eissn1094-1622pl
dc.identifier.eissn1538-4446pl
dc.identifier.issn1050-2947pl
dc.identifier.urihttp://ruj.uj.edu.pl/xmlui/handle/item/2561
dc.languageengpl
dc.language.containerengpl
dc.rightsDodaję tylko opis bibliograficzny*
dc.rights.uri*
dc.subject.enquantum gasespl
dc.subtypeArticlepl
dc.titleTunable dipolar resonances and Einstein-de Haas effect in a 87Rb-atom condensatepl
dc.title.journalPhysical Review. A, Atomic, Molecular, and Optical Physicspl
dc.typeJournalArticlepl
dspace.entity.typePublication
cris.lastimport.wos
2024-04-10T01:13:11Z
dc.abstract.enpl
We theoretically study a spinor condensate of Rb87 atoms in a F=1 hyperfine state confined in an optical dipole trap. Putting initially all atoms in an mF=1, component we observe a significant transfer of atoms to other, initially empty Zeeman states exclusively due to dipolar forces. Because of conservation of a total angular momentum the atoms going to other Zeeman components acquire an orbital angular momentum and circulate around the center of the trap. This is a realization of the Einstein-de Haas effect in a system of cold gases. We show that the transfer of atoms via dipolar interactions is possible only when the energies of the initial and the final sates are equal. This condition can be fulfilled utilizing a resonant external magnetic field, which tunes energies of involved states via the linear Zeeman effect. We found that there are many final states of different spatial density, which can be tuned selectively to the initial state. We show a simple model explaining high selectivity and controllability of weak dipolar interactions in the condensate of Rb87 atoms.
dc.affiliationpl
Wydział Lekarski : Zakład Histologii
dc.affiliationpl
Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego
dc.contributor.authorpl
Świsłocki, Tomasz
dc.contributor.authorpl
Sowiński, Tomasz
dc.contributor.authorpl
Pietraszewicz, Joanna
dc.contributor.authorpl
Brewczyk, Mirosław
dc.contributor.authorpl
Lewenstein, Maciej
dc.contributor.authorpl
Zakrzewski, Jakub - 100023
dc.contributor.authorpl
Gajda, Mariusz - 129426
dc.date.accessioned
2015-01-15T11:00:53Z
dc.date.available
2015-01-15T11:00:53Z
dc.date.issuedpl
2011
dc.description.numberpl
6
dc.description.volumepl
83
dc.identifier.articleidpl
063617
dc.identifier.doipl
10.1103/PhysRevA.83.063617
dc.identifier.eissnpl
1094-1622
dc.identifier.eissnpl
1538-4446
dc.identifier.issnpl
1050-2947
dc.identifier.uri
http://ruj.uj.edu.pl/xmlui/handle/item/2561
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Dodaję tylko opis bibliograficzny
dc.rights.uri*
dc.subject.enpl
quantum gases
dc.subtypepl
Article
dc.titlepl
Tunable dipolar resonances and Einstein-de Haas effect in a 87Rb-atom condensate
dc.title.journalpl
Physical Review. A, Atomic, Molecular, and Optical Physics
dc.typepl
JournalArticle
dspace.entity.type
Publication
Affiliations

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