Dipole blockade at Förster resonances in high resolution laser excitation of Rydberg states of cesium atoms.

@article{Vogt2006DipoleBA,
  title={Dipole blockade at F{\"o}rster resonances in high resolution laser excitation of Rydberg states of cesium atoms.},
  author={Thibault Vogt and Matthieu Viteau and Jianming Zhao and Amodsen Chotia and Daniel Comparat and Pierre Pillet},
  journal={Physical review letters},
  year={2006},
  volume={97 8},
  pages={083003}
}
High resolution laser excitation of np Rydberg states of cesium atoms shows a dipole blockade at Förster resonances corresponding to the resonant dipole-dipole energy transfer of the np+np --> ns+(n+1)s reaction. The dipole-dipole interaction can be tuned on and off by the Stark effect, and such a process, observed for relatively low n(25-41), is promising for quantum gate devices. Both Penning ionization and saturation in the laser excitation can limit the range of observation of the dipole… CONTINUE READING
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