Artículo
Vortices in Bose-Einstein condensates with dominant dipolar interactions
Fecha de publicación:
06/2009
Editorial:
American Physical Society
Revista:
Physical Review A: Atomic, Molecular and Optical Physics
ISSN:
1050-2947
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We present full three-dimensional numerical calculations of single vortex states in rotating dipolar condensates. We consider a Bose-Einstein condensate of C 52 r atoms with dipole-dipole and s -wave contact interactions confined in an axially symmetric harmonic trap. We obtain the vortex states by numerically solving the Gross-Pitaevskii equation in the rotating frame with no further approximations. We investigate the properties of a single vortex and calculate the critical angular velocity for different values of the s -wave scattering length. We show that, whereas the standard variational approach breaks down in the limit of pure dipolar interactions, exact solutions of the Gross-Pitaevskii equation can be obtained for values of the s -wave scattering length down to zero. The energy barrier for the nucleation of a vortex is calculated as a function of the vortex displacement from the rotation axis for different values of the angular velocity of the rotating trap. © 2009 The American Physical Society.
Palabras clave:
Vortices
,
Bose-Einstein
,
Condensate
,
Dipolar
Archivos asociados
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Identificadores
Colecciones
Articulos(IFIBA)
Articulos de INST.DE FISICA DE BUENOS AIRES
Articulos de INST.DE FISICA DE BUENOS AIRES
Citación
Abad, Manuel; Guilleumas, M.; Mayol, R.; Pi, M.; Jezek, Dora Marta; Vortices in Bose-Einstein condensates with dominant dipolar interactions; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 79; 6; 6-2009; 636221-636229
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