Scientists have created the world’s smallest diamond ring.
At only 5 microns (or millionths of a meter) in diameter and 300 nanometers (or billionths of a meter) in thickness, this rock won’t get any ‘oohs’ or ‘ahhs’ from admiring friends.
But it can help scientists who are developing quantum information processing: The ring is a component in a device for producing and detecting single photons, or particles of light.
Set in different states, photons can carry information. In ordinary digital computers, information is stored in bits, which can have a value of either “1″ or “0″ (just as a light switch can only be “on” or “off”). The order of 1’s and 0’s indicates a certain piece of information. (story)


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