Dr. Hau and her co-researchers, Dr. Naomi S. Ginsberg and Dr. Sean R. Garner, stopped and extinguished a light pulse in a tiny, supercooled sodium cloud called a Bose Einstein Condensate, and then brought the light pulse back into existence in another atom cloud in a separate location.
The information inside the light pulse was transferred from the first to the second cloud by converting the light pulse into a travelling matter wave, a small atom pulse that was a perfect matter copy of the extinguished light pulse. After the matter wave entered the second cloud, the atoms there worked together to restore the original light pulse.
The work is funded by the Air Force Office of Scientific Research, the National Science Foundation and NASA.
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