Generating persistent currents states of
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K. Helmerson; M.F. Andersen; C. Ryu; P. CladΓ©; V. Natarajan; A. Vaziri; W.D. Phi
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Article
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2007
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Elsevier Science
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English
β 508 KB
We describe the coherent transfer of the orbital angular momentum of a photon to an atom in quantized units of h, using a 2-photon stimulated Raman process with Laguerre-Gaussian beams to generate an atomic vortex state in a Bose-Einstein condensate (BEC) of sodium atoms. We show that the process is