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Abstract:

We study the formation of Faraday waves in an elongated Bose-Einstein condensate in the presence of a one-dimensional optical lattice. The waves are parametrically excited by modulating the radial confinement of the condensate close to a transverse breathing mode of the system. For very shallow optical lattices, phonons with a well-defined wave vector propagate along the condensate, as in the absence of the lattice, and we observe the formation of a Faraday pattern. We find that by increasing the potential depth the local sound velocity decreases, and when it equals the condensate local phase velocity, the condensate develops an incoherent superposition of several modes and the parametric excitation of Faraday waves is suppressed. © 2011 The American Physical Society.

Registro:

Documento: Artículo
Título:Suppression of Faraday waves in a Bose-Einstein condensate in the presence of an optical lattice
Autor:Capuzzi, P.; Gattobigio, M.; Vignolo, P.
Filiación:Departamento de Fisica, FCEN Universidad de Buenos Aires, Pab. I, C1428EGA Buenos Aires, Argentina
Instituto de Física de Buenos Aires-CONICET, Argentina
Université de Nice-Sophia Antipolis, Institut Non Linéaire de Nice, CNRS, 1361 route des Lucioles, F-06560 Valbonne, France
Palabras clave:Bose-Einstein condensates; Breathing modes; Faraday waves; Incoherent superposition; One dimensional optical lattice; Optical lattices; Parametric excitations; Radial confinement; Sound velocities; Wave vector; Crystal lattices; Magnetic field effects; Optical materials; Statistical mechanics; Steam condensers; Faraday effect
Año:2011
Volumen:83
Número:1
DOI: http://dx.doi.org/10.1103/PhysRevA.83.013603
Título revista:Physical Review A - Atomic, Molecular, and Optical Physics
Título revista abreviado:Phys Rev A
ISSN:10502947
CODEN:PLRAA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v83_n1_p_Capuzzi

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Citas:

---------- APA ----------
Capuzzi, P., Gattobigio, M. & Vignolo, P. (2011) . Suppression of Faraday waves in a Bose-Einstein condensate in the presence of an optical lattice. Physical Review A - Atomic, Molecular, and Optical Physics, 83(1).
http://dx.doi.org/10.1103/PhysRevA.83.013603
---------- CHICAGO ----------
Capuzzi, P., Gattobigio, M., Vignolo, P. "Suppression of Faraday waves in a Bose-Einstein condensate in the presence of an optical lattice" . Physical Review A - Atomic, Molecular, and Optical Physics 83, no. 1 (2011).
http://dx.doi.org/10.1103/PhysRevA.83.013603
---------- MLA ----------
Capuzzi, P., Gattobigio, M., Vignolo, P. "Suppression of Faraday waves in a Bose-Einstein condensate in the presence of an optical lattice" . Physical Review A - Atomic, Molecular, and Optical Physics, vol. 83, no. 1, 2011.
http://dx.doi.org/10.1103/PhysRevA.83.013603
---------- VANCOUVER ----------
Capuzzi, P., Gattobigio, M., Vignolo, P. Suppression of Faraday waves in a Bose-Einstein condensate in the presence of an optical lattice. Phys Rev A. 2011;83(1).
http://dx.doi.org/10.1103/PhysRevA.83.013603