A room-temperature hBN single-photon emitter ran B92 QKD at a 40 MHz clock rate, yielding 17.5 kbps sifted rate, 6.49% QBER, and a claimed 7 kbps finite-key secure key rate.
Bruß, Physical Review Letters 81, 3018 (1998)
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Secure Quantum Key Distribution Using a Room-Temperature Quantum Emitter
A room-temperature hBN single-photon emitter ran B92 QKD at a 40 MHz clock rate, yielding 17.5 kbps sifted rate, 6.49% QBER, and a claimed 7 kbps finite-key secure key rate.