Progress in Quantum Computing: Researchers Control Rate of Photon Emission from Luminescent Imperfections in Diamond


ScienceDaily (Oct. 12, 2011) — Engineers and physicists at Harvard have managed to capture light in tiny diamond pillars embedded in silver, releasing a stream of single photons at a controllable rate.

The advance represents a milestone on the road to quantum networks in which information can be encoded in spins of electrons and carried through a network via light, one photon at a time.

The finding was published in Nature Photonics, appearing online Oct. 9.

“We can make the emission of photons faster, which will allow us to do more processing per second — for example, more computations — in the future quantum network,” explains principal investigator Marko Lončar, Associate Professor of Electrical Engineering at the Harvard School of Engineering and Applied Sciences (SEAS).more

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