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New method could yield fast, cross-country quantum network - EurekAlert


Researchers at the University of Chicago Pritzker School of Molecular Engineering (PME) have proposed a new approach to building quantum networks — building long quantum channels using vacuum sealed tubes with an array of spaced-out lenses. These vacuum beam guides, about 20 centimeters in diameter, would have ranges of thousands of kilometers and capacities of more than 1013 qubits per second, better than any existing quantum communication approach. Photons of light encoding quantum data would move through the vacuum tubes and remain focused thanks to the lenses.

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