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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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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1768542126296006656 |