Cavity-controlled collective scattering at the recoil limit.

  title={Cavity-controlled collective scattering at the recoil limit.},
  author={Simone Bux and Christine Gnahm and Reinhardt A. W. Maier and Claus Zimmermann and Philippe Wilhelm Courteille},
  journal={Physical review letters},
  volume={106 20},
We study collective scattering with Bose-Einstein condensates interacting with a high-finesse ring cavity. The condensate scatters the light of a transverse pump beam superradiantly into modes which, in contrast to previous experiments, are not determined by the geometrical shape of the condensate, but specified by a resonant cavity mode. Moreover, since the recoil-shifted frequency of the scattered light depends on the initial momentum of the scattered fraction of the condensate, we show that… 

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