Stationary arrays of vortices in Bose-Einstein condensates confined by a toroidal trap

We numerically study metastable arrays of vortices in three-dimensional Bose-Einstein condensates by solving the Gross-Pitaevskii equation with initial imprinted vorticity. We consider condensates confined by a harmonic plus Gaussian potential such as that used in a recent experiment. We analyse the...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Capuzzi, Pablo, Jezek, Dora Marta
Publicado: 2009
Materias:
Bose-Einstein condensates
Gaussians
Gross-Pitaevskii equation
Quantized vortex
Spatial distribution
Spatial in-homogeneity
Stationary configurations
Three-dimensional Bose-Einstein condensate
Toroidal trap
Trap parameters
Velocity field
Winding number
Bose-Einstein condensation
Statistical mechanics
Steam condensers
Size distribution
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09534075_v42_n14_p_Capuzzi
http://hdl.handle.net/20.500.12110/paper_09534075_v42_n14_p_Capuzzi
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_09534075_v42_n14_p_Capuzzi
record_format dspace
spelling paper:paper_09534075_v42_n14_p_Capuzzi2023-06-08T15:55:16Z Stationary arrays of vortices in Bose-Einstein condensates confined by a toroidal trap Capuzzi, Pablo Jezek, Dora Marta Bose-Einstein condensates Gaussians Gross-Pitaevskii equation Quantized vortex Spatial distribution Spatial in-homogeneity Stationary configurations Three-dimensional Bose-Einstein condensate Toroidal trap Trap parameters Velocity field Winding number Bose-Einstein condensation Statistical mechanics Steam condensers Size distribution We numerically study metastable arrays of vortices in three-dimensional Bose-Einstein condensates by solving the Gross-Pitaevskii equation with initial imprinted vorticity. We consider condensates confined by a harmonic plus Gaussian potential such as that used in a recent experiment. We analyse the energy barrier that prevents the vortices from leaving the trap and the spatial distribution of vortices for different trap parameters and winding numbers. For configurations forming rings of vortices we interpret the results in terms of the velocity fields produced by the vortices themselves and the spatial inhomogeneity of the condensate. For low enough densities, we found stationary configurations of multiply quantized vortices. © 2009 IOP Publishing Ltd. Fil:Capuzzi, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Jezek, D.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2009 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09534075_v42_n14_p_Capuzzi http://hdl.handle.net/20.500.12110/paper_09534075_v42_n14_p_Capuzzi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Bose-Einstein condensates
Gaussians
Gross-Pitaevskii equation
Quantized vortex
Spatial distribution
Spatial in-homogeneity
Stationary configurations
Three-dimensional Bose-Einstein condensate
Toroidal trap
Trap parameters
Velocity field
Winding number
Bose-Einstein condensation
Statistical mechanics
Steam condensers
Size distribution
spellingShingle Bose-Einstein condensates
Gaussians
Gross-Pitaevskii equation
Quantized vortex
Spatial distribution
Spatial in-homogeneity
Stationary configurations
Three-dimensional Bose-Einstein condensate
Toroidal trap
Trap parameters
Velocity field
Winding number
Bose-Einstein condensation
Statistical mechanics
Steam condensers
Size distribution
Capuzzi, Pablo
Jezek, Dora Marta
Stationary arrays of vortices in Bose-Einstein condensates confined by a toroidal trap
topic_facet Bose-Einstein condensates
Gaussians
Gross-Pitaevskii equation
Quantized vortex
Spatial distribution
Spatial in-homogeneity
Stationary configurations
Three-dimensional Bose-Einstein condensate
Toroidal trap
Trap parameters
Velocity field
Winding number
Bose-Einstein condensation
Statistical mechanics
Steam condensers
Size distribution
description We numerically study metastable arrays of vortices in three-dimensional Bose-Einstein condensates by solving the Gross-Pitaevskii equation with initial imprinted vorticity. We consider condensates confined by a harmonic plus Gaussian potential such as that used in a recent experiment. We analyse the energy barrier that prevents the vortices from leaving the trap and the spatial distribution of vortices for different trap parameters and winding numbers. For configurations forming rings of vortices we interpret the results in terms of the velocity fields produced by the vortices themselves and the spatial inhomogeneity of the condensate. For low enough densities, we found stationary configurations of multiply quantized vortices. © 2009 IOP Publishing Ltd.
author Capuzzi, Pablo
Jezek, Dora Marta
author_facet Capuzzi, Pablo
Jezek, Dora Marta
author_sort Capuzzi, Pablo
title Stationary arrays of vortices in Bose-Einstein condensates confined by a toroidal trap
title_short Stationary arrays of vortices in Bose-Einstein condensates confined by a toroidal trap
title_full Stationary arrays of vortices in Bose-Einstein condensates confined by a toroidal trap
title_fullStr Stationary arrays of vortices in Bose-Einstein condensates confined by a toroidal trap
title_full_unstemmed Stationary arrays of vortices in Bose-Einstein condensates confined by a toroidal trap
title_sort stationary arrays of vortices in bose-einstein condensates confined by a toroidal trap
publishDate 2009
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09534075_v42_n14_p_Capuzzi
http://hdl.handle.net/20.500.12110/paper_09534075_v42_n14_p_Capuzzi
work_keys_str_mv AT capuzzipablo stationaryarraysofvorticesinboseeinsteincondensatesconfinedbyatoroidaltrap
AT jezekdoramarta stationaryarraysofvorticesinboseeinsteincondensatesconfinedbyatoroidaltrap
_version_ 1768543954560614400

Ejemplares similares