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Home > News > Optical quantum memory designed

April 21st, 2004

Optical quantum memory designed

Researchers at NASA's Jet Propulsion Laboratory have designed an optical quantum memory device capable of storing photonic qubits for use in all-optical quantum computers and quantum communications networks. The researchers' quantum transponder could be used to make quantum repeaters that would extend the distances covered by emerging quantum cryptography systems. Quantum cryptography provides theoretically perfect security because eavesdroppers unavoidably disturb quantum information in detectable ways.


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