Electromagnetically induced transparency of an interacting cold Rydberg ensemble

K J Weatherill, J D Pritchard, R P Abel, M G Bason, A K Mohapatra, C S Adams

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We study electromagnetically induced transparency (EIT) of a weakly interacting cold Rydberg gas. We show that for Rydberg states with principal quantum numbers in the range n = 19-26, the onset of interactions is manifest as a depopulation of the Rydberg state. In the limit of a weak probe where the depopulation effect is negligible, we observe no evidence of interaction-induced decoherence and obtain a narrow Rydberg dark resonance with a linewidth of <600 kHz.
Original languageEnglish
Article number201002
Number of pages5
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Issue number20
Publication statusPublished - 1 Oct 2008


  • flow interactions
  • optical properties
  • quantum optics
  • transparency
  • dark resonances
  • decoherence
  • electromagnetically induced transparencies
  • principal quantum numbers
  • Rydberg
  • Rydberg gases
  • Rydberg states


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