Vortex creation in a trapped Bose-Einstein condensate by stimulated Raman adiabatic passage

G. Nandi, R. Walser, and W. P. Schleich
Phys. Rev. A 69, 063606 – Published 10 June 2004

Abstract

We examine a scheme for the optical creation of a superfluid vortex in a trapped Bose-Einstein condensate, using the stimulated Raman adiabatic passage technique (STIRAP). By exposing an oblate, axis-symmetric condensate to two copropagating laser pulses, one can transfer external angular momentum from the light field to the matter wave, if one of the beams is the fundamental Gaussian mode and the other is a Gauss-Laguerre mode of angular momentum 1. We demonstrate the complete transfer efficiency by numerical integration of the multicomponent Gross-Pitaevskii equation and explain the results with an intuitive and accurate approximation within the Thomas-Fermi limit. In addition, we discuss residual excitations (breathing modes) which occur in the two-dimensional regime and present the Bogoliubov excitation spectrum.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
3 More
  • Received 16 January 2004

DOI:https://doi.org/10.1103/PhysRevA.69.063606

©2004 American Physical Society

Authors & Affiliations

G. Nandi*, R. Walser, and W. P. Schleich

  • Abteilung für Quantenphysik, Universität Ulm, D-89069 Ulm, Germany

  • *Electronic address: gerrit.nandi@physik.uni-ulm.de

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 69, Iss. 6 — June 2004

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review A

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×