Two for One: NIST Design Enables More Cost-Effective Quantum Key Distribution

Contact: Ben Stein
bstein@nist.gov
301-975-3097
National Institute of Standards and Technology (NIST)

Two for One: NIST Design Enables More Cost-Effective Quantum Key Distribution

Caption: A highly simplified schematic of a recipient's detectors in a quantum cryptography setup. Conventional cryptography setups (left) require at least two detectors, and the most common setup, known as BB84, requires four. By adding an optical component that delays the travel of photons to the detector, the number of required detectors is cut in half

Credit: NIST

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