Cooperative atom-light interaction in a blockaded Rydberg ensemble.

نویسندگان

  • J D Pritchard
  • D Maxwell
  • A Gauguet
  • K J Weatherill
  • M P A Jones
  • C S Adams
چکیده

By coupling a probe transition to a Rydberg state using electromagnetically induced transparency (EIT) we map the strong dipole-dipole interactions onto an optical field. We characterize the resulting cooperative optical nonlinearity as a function of probe strength and density. We demonstrate good quantitative agreement between the experiment and an N-atom cooperative model for N=3 atoms per blockade sphere and the n=60 Rydberg state. The measured linewidth of the EIT resonance places an upper limit on the dephasing rate of the blockade spheres of <110 kHz.

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عنوان ژورنال:
  • Physical review letters

دوره 105 19  شماره 

صفحات  -

تاریخ انتشار 2010