Source: Scientific American
Date: 12/1/2011
Usually a finicky phenomenon limited to tiny, ultracold objects,
entanglement has now been achieved for macroscopic diamonds at room
temperature
Diamonds have long been available in pairs—say, mounted in a nice set
of earrings. But physicists have now taken that pairing to a new level,
linking two diamonds on the quantum level.
A group of researchers report in the December 2 issue of Science that they managed to entangle the quantum states of two diamonds
separated by 15 centimeters. Quantum entanglement is a phenomenon by
which two or more objects share an unseen link bridging the space
between them—a hypothetical pair of entangled dice, for instance, would
always land on matching numbers, even if they were rolled in different
places simultaneously.
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