Photons meet with three-way split

Published in Nature, 28 Jul 2010

A single photon can now be split into three, thanks to the work of an international team of physicists. The achievement could open up new avenues in the field of quantum information.

The ability to split photons may not sound as extraordinary as other achievements in quantum physics, but for decades it has proved crucial to the success of many experiments. Often researchers need to know that photons are emitted at precisely the same time and are in phase with each other, and this is almost impossible if the photons come from separate sources. […]

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