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Vortex Coupler for Atomic Bose-Einstein Condensates

Journal Article · · Physical Review Letters
;  [1];  [2]
  1. School of Mathematics, Physics, Computing and Electronics, Macquarie University, Sydney, NSW 2109 (Australia)
  2. Optical Sciences Center, University of Arizona, Tucson, Arizona 85721 (United States)
A coherent coupler is proposed to spin a Bose-Einstein condensate composed of ultracold alkali atoms into a vortex state. The proposal is based on a Raman transition induced by two copropagating {sigma}{sup +} and {sigma}{sup {minus}} polarized Laguerre-Gaussian laser beams with different frequencies. We show that the transfer of angular momentum of photons to the condensed atoms through a Raman transition leads to a coherent coupling of the ground-state condensate to a rotating condensate in a vortex state. The detection of such a vortex state is discussed. {copyright} {ital 1997} {ital The American Physical Society}
OSTI ID:
554384
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 24 Vol. 79; ISSN 0031-9007; ISSN PRLTAO
Country of Publication:
United States
Language:
English

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