Abstract:
We propose a new scheme for observing Josephson oscillations and macroscopic quantum self-trapping in a toroidally confined Bose-Einstein condensate: a dipolar self-induced Josephson junction. Polarizing the atoms perpendicularly to the trap symmetry axis, an effective ring-shaped, double-well potential is achieved which is induced by the dipolar interaction. By numerically solving the three-dimensional time-dependent Gross-Pitaevskii equation we show that coherent tunneling phenomena such as Josephson oscillations and quantum self-trapping can take place. The dynamics in the self-induced junction can be qualitatively described by a two-mode model taking into account both s-wave and dipolar interactions. © 2011 Europhysics Letters Association.
Registro:
Documento: |
Artículo
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Título: | A dipolar self-induced bosonic Josephson junction |
Autor: | Abad, M.; Guilleumas, M.; Mayol, R.; Pi, M.; Jezek, D.M. |
Filiación: | Departament d'Estructura i Constituents de la Matèria, Facultat de Física, Universitat de Barcelona, E-08028 Barcelona, Spain Departamento de Física, FCEN-UBA - Pabellón 1, Ciudad Universitaria, 1428 Buenos Aires, Argentina
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Año: | 2011
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Volumen: | 94
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Número: | 1
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DOI: |
http://dx.doi.org/10.1209/0295-5075/94/10004 |
Título revista: | EPL
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Título revista abreviado: | EPL
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ISSN: | 02955075
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02955075_v94_n1_p_Abad |
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Citas:
---------- APA ----------
Abad, M., Guilleumas, M., Mayol, R., Pi, M. & Jezek, D.M.
(2011)
. A dipolar self-induced bosonic Josephson junction. EPL, 94(1).
http://dx.doi.org/10.1209/0295-5075/94/10004---------- CHICAGO ----------
Abad, M., Guilleumas, M., Mayol, R., Pi, M., Jezek, D.M.
"A dipolar self-induced bosonic Josephson junction"
. EPL 94, no. 1
(2011).
http://dx.doi.org/10.1209/0295-5075/94/10004---------- MLA ----------
Abad, M., Guilleumas, M., Mayol, R., Pi, M., Jezek, D.M.
"A dipolar self-induced bosonic Josephson junction"
. EPL, vol. 94, no. 1, 2011.
http://dx.doi.org/10.1209/0295-5075/94/10004---------- VANCOUVER ----------
Abad, M., Guilleumas, M., Mayol, R., Pi, M., Jezek, D.M. A dipolar self-induced bosonic Josephson junction. EPL. 2011;94(1).
http://dx.doi.org/10.1209/0295-5075/94/10004