Long-haul high rate quantum key distribution
Patent
·
OSTI ID:1637888
Multiple bit values can be encoded on a single photon in a quantum key distribution (QKD) system using a plurality of sidebands of an optical carrier frequency. Computational and conjugate bases can be defined, and photons decoded based on a selected state from either basis. If n sidebands are available, as many as log2 n bits can be encoded on a single photon. Errors in detected bit values due to selection of an incorrect basis state or other errors can be at least partially corrected by bit distillation to identity bit strings for which a transmitter and a receiver record the same values, without insecure transmission of these values.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC52-06NA25396
- Assignee:
- Triad National Security, LLC (Los Alamos, NM)
- Patent Number(s):
- 10,587,402
- Application Number:
- 16/023,472
- OSTI ID:
- 1637888
- Country of Publication:
- United States
- Language:
- English
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