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Scientists at the University of Glasgow have photographed quantum entanglement, capturing for the first time visible evidence of the phenomenon described by Einstein as “’spooky action at a distance.” The image pictures a form of entanglement called Bell entanglement. Although Bell entanglement is being used today to develop quantum computing and cryptography applications, it has never been captured in a single photo.
Physicists took a photograph of quantum entanglement. Courtesy of the University of Glasgow/CC by 4.0.
To prepare the image, the researchers used a crystal pumped by an ultraviolet laser as a source of entangled photon pairs. The two photons were separated on a beamsplitter.
The researchers set up a…READ MORE