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Abad, M.; Guilleumas, M.; Mayol, R.; Pi, M.; Jezek, D.M. "Phase slippage and self-trapping in a self-induced bosonic Josephson junction" (2011) Physical Review A - Atomic, Molecular, and Optical Physics. 84(3)
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Abstract:

A dipolar condensate confined in a toroidal trap constitutes a self-induced Josephson junction when the dipoles are oriented perpendicularly to the trap symmetry axis and the s-wave scattering length is small enough. The ring-shaped double-well potential coming from the anisotropic character of the mean-field dipolar interaction is robust enough to sustain self-trapping dynamics, which takes place when the initial population imbalance between the two wells is large. We show that, in this system, the self-trapping regime is directly related to a vortex-induced phase-slip dynamics. A vortex and antivortex are spontaneously nucleated in the low-density regions before a minimum of the population imbalance is reached and then cross the toroidal section in opposite directions through the junctions. This vortex dynamics yields a phase slip between the two weakly linked condensates causing an inversion of the particle flux. © 2011 American Physical Society.

Registro:

Documento: Artículo
Título:Phase slippage and self-trapping in a self-induced bosonic Josephson junction
Autor:Abad, M.; Guilleumas, M.; Mayol, R.; Pi, M.; Jezek, D.M.
Filiación:Departament d'Estructura i Constituents de la Matèria, Facultat de Física, Universitat de Barcelona, E-08028 Barcelona, Spain
IFIBA-CONICET and Departamento de Física, FCEN-UBA Pabellón 1, Ciudad Universitaria, 1428 Buenos Aires, Argentina
Palabras clave:Antivortex; Dipolar interaction; Double-well potential; Initial population; Josephson junctions; Mean-field; Particle fluxes; Phase slips; S-wave scattering lengths; Self-trapping; Toroidal trap; Trap symmetries; Vortex dynamics; Josephson junction devices; Population statistics; Quantum optics; Vortex flow
Año:2011
Volumen:84
Número:3
DOI: http://dx.doi.org/10.1103/PhysRevA.84.035601
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_v84_n3_p_Abad

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  • Unpublished

Citas:

---------- APA ----------
Abad, M., Guilleumas, M., Mayol, R., Pi, M. & Jezek, D.M. (2011) . Phase slippage and self-trapping in a self-induced bosonic Josephson junction. Physical Review A - Atomic, Molecular, and Optical Physics, 84(3).
http://dx.doi.org/10.1103/PhysRevA.84.035601
---------- CHICAGO ----------
Abad, M., Guilleumas, M., Mayol, R., Pi, M., Jezek, D.M. "Phase slippage and self-trapping in a self-induced bosonic Josephson junction" . Physical Review A - Atomic, Molecular, and Optical Physics 84, no. 3 (2011).
http://dx.doi.org/10.1103/PhysRevA.84.035601
---------- MLA ----------
Abad, M., Guilleumas, M., Mayol, R., Pi, M., Jezek, D.M. "Phase slippage and self-trapping in a self-induced bosonic Josephson junction" . Physical Review A - Atomic, Molecular, and Optical Physics, vol. 84, no. 3, 2011.
http://dx.doi.org/10.1103/PhysRevA.84.035601
---------- VANCOUVER ----------
Abad, M., Guilleumas, M., Mayol, R., Pi, M., Jezek, D.M. Phase slippage and self-trapping in a self-induced bosonic Josephson junction. Phys Rev A. 2011;84(3).
http://dx.doi.org/10.1103/PhysRevA.84.035601