Toshiba claims entangled photon breakthrough

Iria

Researchers at Cambridge University and Toshiba have announced a new quantum device that produces entangled photons, a promising technology for quantum encryption.

Consisting of pairs of photons of light whose fundamental properties are inextricably linked, the technology has attracted increasing interest over the past 10 years. It has many possible uses in addition to encryption, including communications, quantum computing, medical imaging and chip production.

The device is important for two reasons, said Andrew Shields, head of the Quantum Information group at Toshiba Research Europe. First, it's made from ordinary semiconductors; second, it produces entangled photons on command.

"For the first time, we can produce pulses of photons that are regular and reliable enough to be used as a clock in quantum computing, for example, from something we can make almost as easily as any other semiconductor," Shields said in an interview.
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Read More / Source: ZDNet