Work

A dipolar self-induced bosonic Josephson junction

Year: 2011

Type: article

Abstract: We propose a new scheme for observing Josephson oscillations and macroscopic quantum self-trapping in a toroidally confined Bose-Einstein condensate: a dipolar self-induced Josephson junction. Polarizing the atoms perpendicularly to the trap symmetry axis, an effective ring-shaped, double-well potential is achieved which is induced by the dipolar interaction. By numerically solving the three-dimensional time-dependent Gross-Pitaevskii equation we show that coherent tunneling phenomena such as Josephson oscillations and quantum self-trapping can take place. The dynamics in the self-induced junction can be qualitatively described by a two-mode model taking into account both s -wave and dipolar interactions.

Source: Europhysics Letters (EPL)

DOI: 10.1209/0295-5075/94/10004

Authors: M. Abad, M. Guilleumas, R. Mayol, M. Pi, D. M. Jezek

Institutions: Universitat de Barcelona, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad de Buenos Aires, Instituto de Física de Buenos Aires

Language: English

Topic: Cold Atom Physics and Bose-Einstein Condensates

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funders: Generalitat de Catalunya, Consejo Nacional de Investigaciones Científicas y Técnicas, Ministerio de Economía y Competitividad

Awards: G5433924438, G6894314495