Phase slips and vortex dynamics in Josephson oscillations between Bose-Einstein condensates

We study the relation between Josephson dynamics and topological excitations in a dilute Bose-Einstein condensate confined in a double-well trap. We show that the phase slips responsible for the self-trapping regime are created by vortex rings entering and annihilating inside the weak-link region or...

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Autores principales:	Abad, M., Guilleumas, M., Mayol, R., Piazza, F., Jezek, D.M., Smerzi, A.
Formato:	JOUR
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_02955075_v109_n4_p_Abad
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_02955075_v109_n4_p_Abad
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spelling	todo:paper_02955075_v109_n4_p_Abad2023-10-03T15:17:21Z Phase slips and vortex dynamics in Josephson oscillations between Bose-Einstein condensates Abad, M. Guilleumas, M. Mayol, R. Piazza, F. Jezek, D.M. Smerzi, A. We study the relation between Josephson dynamics and topological excitations in a dilute Bose-Einstein condensate confined in a double-well trap. We show that the phase slips responsible for the self-trapping regime are created by vortex rings entering and annihilating inside the weak-link region or created at the center of the barrier and expanding outside the system. Large amplitude oscillations just before the onset of self-trapping are also strictly connected with the dynamics of vortex rings at the edges of the inter-well barrier. Our results extend and analyze the dynamics of the vortex-induced phase slippages suggested a few decades ago in relation to the "ac" Josephson effect of superconducting and superfluid helium systems. © CopyrightEPLA, 2015. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_02955075_v109_n4_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 study the relation between Josephson dynamics and topological excitations in a dilute Bose-Einstein condensate confined in a double-well trap. We show that the phase slips responsible for the self-trapping regime are created by vortex rings entering and annihilating inside the weak-link region or created at the center of the barrier and expanding outside the system. Large amplitude oscillations just before the onset of self-trapping are also strictly connected with the dynamics of vortex rings at the edges of the inter-well barrier. Our results extend and analyze the dynamics of the vortex-induced phase slippages suggested a few decades ago in relation to the "ac" Josephson effect of superconducting and superfluid helium systems. © CopyrightEPLA, 2015.
format	JOUR
author	Abad, M. Guilleumas, M. Mayol, R. Piazza, F. Jezek, D.M. Smerzi, A.
spellingShingle	Abad, M. Guilleumas, M. Mayol, R. Piazza, F. Jezek, D.M. Smerzi, A. Phase slips and vortex dynamics in Josephson oscillations between Bose-Einstein condensates
author_facet	Abad, M. Guilleumas, M. Mayol, R. Piazza, F. Jezek, D.M. Smerzi, A.
author_sort	Abad, M.
title	Phase slips and vortex dynamics in Josephson oscillations between Bose-Einstein condensates
title_short	Phase slips and vortex dynamics in Josephson oscillations between Bose-Einstein condensates
title_full	Phase slips and vortex dynamics in Josephson oscillations between Bose-Einstein condensates
title_fullStr	Phase slips and vortex dynamics in Josephson oscillations between Bose-Einstein condensates
title_full_unstemmed	Phase slips and vortex dynamics in Josephson oscillations between Bose-Einstein condensates
title_sort	phase slips and vortex dynamics in josephson oscillations between bose-einstein condensates
url	http://hdl.handle.net/20.500.12110/paper_02955075_v109_n4_p_Abad
work_keys_str_mv	AT abadm phaseslipsandvortexdynamicsinjosephsonoscillationsbetweenboseeinsteincondensates AT guilleumasm phaseslipsandvortexdynamicsinjosephsonoscillationsbetweenboseeinsteincondensates AT mayolr phaseslipsandvortexdynamicsinjosephsonoscillationsbetweenboseeinsteincondensates AT piazzaf phaseslipsandvortexdynamicsinjosephsonoscillationsbetweenboseeinsteincondensates AT jezekdm phaseslipsandvortexdynamicsinjosephsonoscillationsbetweenboseeinsteincondensates AT smerzia phaseslipsandvortexdynamicsinjosephsonoscillationsbetweenboseeinsteincondensates
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Phase slips and vortex dynamics in Josephson oscillations between Bose-Einstein condensates

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