Inducing vortices in a Bose-Einstein condensate using holographically produced light beams
arXiv:1102.3373 · doi:10.1364/OE.19.012984
Abstract
In this paper we demonstrate a technique that can create out-of-equilibrium vortex configurations with almost arbitrary charge and geometry in a Bose-Einstein condensate. We coherently transfer orbital angular momentum from a holographically generated light beam to a Rubidium 87 condensate using a two-photon stimulated Raman process. Using matter wave interferometry, we verify the phase pattern imprinted onto the atomic wave function for a single vortex and a vortex-antivortex pair. In addition to their phase winding, the vortices created with this technique have an associated hyperfine spin texture.
4 pages, 5 figures
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- Density profiles of two-component Bose-Einstein condensates interacting with a Laguerre-Gaussian Beam
- The optical manipulation of matter-wave vortices: An analogue of circular dichroism
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- Electrodynamics of Vortices in Quasi-2D Scalar Bose-Einstein Condensates
- Light scattering from an atomic gas under conditions of quantum degeneracy
- Fluctuational susceptibility of ultracold bosons in the vicinity of condensation