1 S − 2 S spectrum of a hydrogen Bose-Einstein condensate

  title={1 S − 2 S spectrum of a hydrogen Bose-Einstein condensate},
  author={Thomas C. Killian},
  journal={Physical Review A},
  • T. Killian
  • Published 2 August 1999
  • Physics
  • Physical Review A
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… 

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