61 citations · 106 across the 3 of their papers we have counts for
3 papers
quant-ph2014★ 39 cited
Electromagnetically induced transparency and four-wave mixing in a cold atomic ensemble with large optical depth
J. Geng, G. T. Campbell, J. Bernu +7
We report on the delay of optical pulses using electromagnetically induced transparency in an ensemble of cold atoms with an optical depth exceeding 500. To identify the regimes in…
quant-ph2012★ 61 cited
Gradient echo memory in an ultra-high optical depth cold atomic ensemble
B. M. Sparkes, J. Bernu, M. Hosseini +6
Quantum memories are an integral component of quantum repeaters - devices that will allow the extension of quantum key distribution to communication ranges beyond that permissible…
quant-ph2011★ 6 cited
Photon number discrimination without a photon counter and its application to reconstructing non-Gaussian states
H. M. Chrzanowski, J. Bernu, B. M. Sparkes +5
The non-linearity of a conditional photon-counting measurement can be used to `de-Gaussify' a Gaussian state of light. Here we present and experimentally demonstrate a technique fo…