U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PUBLICATIONS

Output Coupling from a Trapped Bose-Einstein Condensate in a Vortex State

Published

Author(s)

P B. Blakie, R J. Ballagh, Charles W. Clark

Abstract

We demonstrate how a topological atom laser can be realized by output coupling a trapped vortex state with a Raman scattering process. We find a linearized analytic solution from which a generalized resonance condition for Raman output coupling is developed. Using numerical simulations of a two component Gross-Pitaevskii equation in two and three dimensions the output beam from a trapped central vortex state is analyzed for cases of pulsed and continuous coupling where the vortex core is either transverse or parallel to the direction of propagation. We show how the parameters of the Raman light fields control the spatial phase of the output beam.
Citation
Physical Review A (Atomic, Molecular and Optical Physics)
Volume
68
Issue
No. 2
Pub Type
Journals

Keywords

atom laser, Bose-Einstein condensation, Gross-Pitaevskii, vortex state

Citation

Blakie, P. , Ballagh, R. and Clark, C. (2003), Output Coupling from a Trapped Bose-Einstein Condensate in a Vortex State, Physical Review A (Atomic, Molecular and Optical Physics) (Accessed May 9, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created August 1, 2003, Updated June 2, 2021