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Abstract:

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.

Registro:

Documento: Artículo
Título:Stationary arrays of vortices in Bose-Einstein condensates confined by a toroidal trap
Autor:Capuzzi, P.; Jezek, D.M.
Filiación:Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, RA-1428 Buenos Aires, Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina
Palabras clave: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
Año:2009
Volumen:42
Número:14
DOI: http://dx.doi.org/10.1088/0953-4075/42/14/145301
Título revista:Journal of Physics B: Atomic, Molecular and Optical Physics
Título revista abreviado:J Phys B At Mol Opt Phys
ISSN:09534075
CODEN:JPAPE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09534075_v42_n14_p_Capuzzi

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Citas:

---------- APA ----------
Capuzzi, P. & Jezek, D.M. (2009) . Stationary arrays of vortices in Bose-Einstein condensates confined by a toroidal trap. Journal of Physics B: Atomic, Molecular and Optical Physics, 42(14).
http://dx.doi.org/10.1088/0953-4075/42/14/145301
---------- CHICAGO ----------
Capuzzi, P., Jezek, D.M. "Stationary arrays of vortices in Bose-Einstein condensates confined by a toroidal trap" . Journal of Physics B: Atomic, Molecular and Optical Physics 42, no. 14 (2009).
http://dx.doi.org/10.1088/0953-4075/42/14/145301
---------- MLA ----------
Capuzzi, P., Jezek, D.M. "Stationary arrays of vortices in Bose-Einstein condensates confined by a toroidal trap" . Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 42, no. 14, 2009.
http://dx.doi.org/10.1088/0953-4075/42/14/145301
---------- VANCOUVER ----------
Capuzzi, P., Jezek, D.M. Stationary arrays of vortices in Bose-Einstein condensates confined by a toroidal trap. J Phys B At Mol Opt Phys. 2009;42(14).
http://dx.doi.org/10.1088/0953-4075/42/14/145301