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New all-fiber device simplifies free-space based quantum key distribution

Researchers have developed a simple and stable device to generate the quantum states necessary for quantum key distribution. The device could make it more practical to develop a global data network that uses this very secure method of encryption to protect everything from credit card transactions to texts.

from Top Technology News -- ScienceDaily https://www.sciencedaily.com/releases/2019/05/190506124110.htm
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