1S-2S Spectrum of a Hydrogen Bose-Einstein Condensate

Details 1S-2S Spectrum of a Hydrogen Bose-Einstein Condensate 1S-2S Spectrum of a Hydrogen Bose-Einstein Condensate

1999-08-02

arxiv.org/abs/physics/9908002v3

Phys. Rev. A 61, 33611 (2000)

Physics

Atomic Physics

13 pages, 4 figures

Scientific paper

10.1103/PhysRevA.61.033611

We calculate the two-photon 1S-2S spectrum of an atomic hydrogen Bose-Einstein condensate in the regime where the cold collision frequency shift dominates the lineshape. WKB and static phase approximations are made to find the intensities for transitions from the condensate to motional eigenstates for 2S atoms. The excited state wave functions are found using a mean field potential which includes the effects of collisions with condensate atoms. Results agree well with experimental data. This formalism can be used to find condensate spectra for a wide range of excitation schemes.

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