Metastable off-axis vortices in nonrotating Bose-Einstein condensates

We propose a scenario for studying vortices confined by nonrotating traps. For this purpose we model a polynomial trapping potential that can sustain locally stable off-axis vortices. We also describe a simple numerical method for generating vortices without relying on rotating frames or centrifugal...

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Autores principales: Jezek, D.M., Capuzzi, P., Cataldo, H.M.
Formato: JOUR
Materias:
Electron traps
Ground state
Metastable phases
Polynomials
Vortex flow
Off-axis vortices
Polynomial trapping potential
Vortex energy
Bose-Einstein condensation
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_09534075_v41_n4_p_Jezek
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_09534075_v41_n4_p_Jezek2023-10-03T15:51:02Z Metastable off-axis vortices in nonrotating Bose-Einstein condensates Jezek, D.M. Capuzzi, P. Cataldo, H.M. Electron traps Ground state Metastable phases Polynomials Vortex flow Off-axis vortices Polynomial trapping potential Vortex energy Bose-Einstein condensation We propose a scenario for studying vortices confined by nonrotating traps. For this purpose we model a polynomial trapping potential that can sustain locally stable off-axis vortices. We also describe a simple numerical method for generating vortices without relying on rotating frames or centrifugal potential techniques. This method offers other advantages related to the control in the number of vortices to be generated and in their location. Finally, we compute the vortex energy as a function of its position using three approaches and discuss their validity. We show that a well-defined energy barrier between the vortex and the ground state is obtained. © 2008 IOP Publishing Ltd. Fil:Jezek, D.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Capuzzi, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Cataldo, H.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_09534075_v41_n4_p_Jezek
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Electron traps
Ground state
Metastable phases
Polynomials
Vortex flow
Off-axis vortices
Polynomial trapping potential
Vortex energy
Bose-Einstein condensation
spellingShingle Electron traps
Ground state
Metastable phases
Polynomials
Vortex flow
Off-axis vortices
Polynomial trapping potential
Vortex energy
Bose-Einstein condensation
Jezek, D.M.
Capuzzi, P.
Cataldo, H.M.
Metastable off-axis vortices in nonrotating Bose-Einstein condensates
topic_facet Electron traps
Ground state
Metastable phases
Polynomials
Vortex flow
Off-axis vortices
Polynomial trapping potential
Vortex energy
Bose-Einstein condensation
description We propose a scenario for studying vortices confined by nonrotating traps. For this purpose we model a polynomial trapping potential that can sustain locally stable off-axis vortices. We also describe a simple numerical method for generating vortices without relying on rotating frames or centrifugal potential techniques. This method offers other advantages related to the control in the number of vortices to be generated and in their location. Finally, we compute the vortex energy as a function of its position using three approaches and discuss their validity. We show that a well-defined energy barrier between the vortex and the ground state is obtained. © 2008 IOP Publishing Ltd.
format JOUR
author Jezek, D.M.
Capuzzi, P.
Cataldo, H.M.
author_facet Jezek, D.M.
Capuzzi, P.
Cataldo, H.M.
author_sort Jezek, D.M.
title Metastable off-axis vortices in nonrotating Bose-Einstein condensates
title_short Metastable off-axis vortices in nonrotating Bose-Einstein condensates
title_full Metastable off-axis vortices in nonrotating Bose-Einstein condensates
title_fullStr Metastable off-axis vortices in nonrotating Bose-Einstein condensates
title_full_unstemmed Metastable off-axis vortices in nonrotating Bose-Einstein condensates
title_sort metastable off-axis vortices in nonrotating bose-einstein condensates
url http://hdl.handle.net/20.500.12110/paper_09534075_v41_n4_p_Jezek
work_keys_str_mv AT jezekdm metastableoffaxisvorticesinnonrotatingboseeinsteincondensates
AT capuzzip metastableoffaxisvorticesinnonrotatingboseeinsteincondensates
AT cataldohm metastableoffaxisvorticesinnonrotatingboseeinsteincondensates
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