A dipolar self-induced bosonic Josephson junction

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 poten...

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Autores principales: Abad, M., Guilleumas, M., Mayol, R., Pi, M., Jezek, D.M.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_02955075_v94_n1_p_Abad
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_02955075_v94_n1_p_Abad2023-10-03T15:17:30Z A dipolar self-induced bosonic Josephson junction Abad, M. Guilleumas, M. Mayol, R. Pi, M. Jezek, D.M. 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. Fil:Jezek, D.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_02955075_v94_n1_p_Abad
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description 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.
format JOUR
author Abad, M.
Guilleumas, M.
Mayol, R.
Pi, M.
Jezek, D.M.
spellingShingle Abad, M.
Guilleumas, M.
Mayol, R.
Pi, M.
Jezek, D.M.
A dipolar self-induced bosonic Josephson junction
author_facet Abad, M.
Guilleumas, M.
Mayol, R.
Pi, M.
Jezek, D.M.
author_sort Abad, M.
title A dipolar self-induced bosonic Josephson junction
title_short A dipolar self-induced bosonic Josephson junction
title_full A dipolar self-induced bosonic Josephson junction
title_fullStr A dipolar self-induced bosonic Josephson junction
title_full_unstemmed A dipolar self-induced bosonic Josephson junction
title_sort dipolar self-induced bosonic josephson junction
url http://hdl.handle.net/20.500.12110/paper_02955075_v94_n1_p_Abad
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