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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Detalles Bibliográficos
Autor principal: Jezek, Dora Marta
Publicado: 2011
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02955075_v94_n1_p_Abad
http://hdl.handle.net/20.500.12110/paper_02955075_v94_n1_p_Abad
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling paper:paper_02955075_v94_n1_p_Abad2023-06-08T15:27:12Z A dipolar self-induced bosonic Josephson junction Jezek, Dora Marta 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. 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02955075_v94_n1_p_Abad 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.
author Jezek, Dora Marta
spellingShingle Jezek, Dora Marta
A dipolar self-induced bosonic Josephson junction
author_facet Jezek, Dora Marta
author_sort Jezek, Dora Marta
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
publishDate 2011
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02955075_v94_n1_p_Abad
http://hdl.handle.net/20.500.12110/paper_02955075_v94_n1_p_Abad
work_keys_str_mv AT jezekdoramarta adipolarselfinducedbosonicjosephsonjunction
AT jezekdoramarta dipolarselfinducedbosonicjosephsonjunction
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