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I was going through a paper explaining how the write-in and read-out efficiencies can be increased using cold atoms where they used Rydberg atoms, and mentioned that they were probed using EIT(Electromagnetically Induced Tranparency).

I have a brief idea about EIT, that it can be used to make a system transparent, which would otherwise be opaque.

I also know that the three states are used here, those are

  1. The ground state
  2. An excited state
  3. A rydberg state

Can anyone explain how EIT is used here?

The DOI of the paper is: 10.1109/PHOSST.2017.8012667

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  • $\begingroup$ What does EIT stand for here? $\endgroup$ – By Symmetry May 14 at 12:52
  • $\begingroup$ Electromagnetically Induced Transparency $\endgroup$ – Swaroop Joshi May 14 at 12:53
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    $\begingroup$ well, if there is no EIT l, your input light can be scattered off the intermediate excited state and you lose information stored in the light. $\endgroup$ – wcc May 14 at 20:07
  • $\begingroup$ Oh, thank you so much for answering. Can I ask some other questions too? So the information is stored in the light. If it need not interact with the atom, why is it being passed through it?(sorry I'm not quite clear with this, yet) $\endgroup$ – Swaroop Joshi May 16 at 4:31
  • $\begingroup$ @AmIAStudent , forgot to tag you $\endgroup$ – Swaroop Joshi May 16 at 14:12

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