BBM92 protocol
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BBM92 is a quantum key distribution without Bell's theorem developed using polarized entangled photon pairs by Charles H. Bennett, Gilles Brassard and N. David Mermin in 1992.[1] It is named after the trio's surnames as (Bennett, Brassard and Mermin, BBM92).[2] It uses decoy state of multiple photon instead of single. The key differences in E91 protocol and B92[3] uses only two states instead of four states used by E91 protocol and BB84
 BBM92 protocol | |
| Developed by | Charles H Bennett, Gilles Brassard and N David Mermin |
|---|---|
| Introduced | February 3, 1992 |
It is used for non orthogonal quantum transmission 0 can be encrypted as 0 degree and 1 as 45 degree in diagonal basis BB92 protocol. There are no eavesdropping secure and hack proof [4][5][6][7] for distance of 200–300 m.
References
[edit]- ^ Bennett, Charles H.; Brassard, Gilles; Mermin, N. David (1992-02-03). "Quantum cryptography without Bell's theorem". Physical Review Letters. 68 (5): 557–559. Bibcode:1992PhRvL..68..557B. doi:10.1103/PhysRevLett.68.557. PMID 10045931.
- ^ "INSPIRE". inspirehep.net. Retrieved 2022-09-19.
- ^ Ekert, Artur K. (1992), Tombesi, Paolo; Walls, Daniel F. (eds.), "Quantum Cryptography and Bell's Theorem", Quantum Measurements in Optics, NATO ASI Series, vol. 282, Boston, MA: Springer US, pp. 413–418, doi:10.1007/978-1-4615-3386-3_34, ISBN 978-1-4615-3386-3, retrieved 2022-09-19
- ^ "Department of Space demonstrates entanglement based quantum communication over 300m free space along with real time cryptographic applications - ISRO". www.isro.gov.in. Archived from the original on 2022-02-01. Retrieved 2022-09-19.
- ^ "BBM92 protocol" (PDF).
- ^ "Long-distance entanglement-based quantum key distribution over optical fiber". Retrieved 2024-09-05.
- ^ P. Peleso, Matthew. "Daylight operation of a free space, entanglement-based quantum key distribution system" (PDF). University of Waterloo. Retrieved 2024-09-05.