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Coherence Properties of an Atom Laser



M Trippenbach, Y B. Band, M Edwards, M R. Doery, Paul S. Julienne, Edward W. Hagley, Lu Deng, M M. Kozuma, Kristian Helmerson, S L. Rolston, William D. Phillips


We study the coherence properties of an atom laser, which operates by extracting atoms from a gaseous Bose-Einstein condensate via a two-photon Raman process, by analyzing a recent experiment [(Hagley et al., submitted to Phys. Rev. Lett. (1999)]. We obtain good agreement with the experimental data by solving the Gross-Pitaevskii equation numerically in one dimension and by using an approximate model in three dimensions. Coherence length is strongly affected by the space-dependent phase developed by the condensate when the trapping potential is turned off.
Journal of Physics B-Atomic Molecular and Optical Physics
No. 1


atom laser, Bose-Einstein condensation, coherence length, Gross-Pitaevski equation


Trippenbach, M. , Band, Y. , Edwards, M. , Doery, M. , Julienne, P. , Hagley, E. , Deng, L. , Kozuma, M. , Helmerson, K. , Rolston, S. and Phillips, W. (2000), Coherence Properties of an Atom Laser, Journal of Physics B-Atomic Molecular and Optical Physics (Accessed April 24, 2024)
Created December 31, 1999, Updated October 12, 2021