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
BBM92 protocol
Developed byCharles H Bennett, Gilles Brassard and N David Mermin
IntroducedFebruary 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] for distance of 200–300 m.

References

  1. ↑ 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.
  2. ↑ "INSPIRE". inspirehep.net. Retrieved 2022-09-19.
  3. ↑ Ekert, Artur K. (1992), Tombesi, Paolo; Walls, Daniel F. (eds.), "Quantum Cryptography and Bell's Theorem", Quantum Measurements in Optics, NATO ASI Series, Boston, MA: Springer US, vol. 282, pp. 413–418, doi:10.1007/978-1-4615-3386-3_34, ISBN 978-1-4615-3386-3, retrieved 2022-09-19
  4. ↑ "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.
  5. ↑ https://opg.optica.org/viewmedia.cfm?uri=oe-16-23-19118&seq=0 https://core.ac.uk/download/pdf/48631569.pdf "BBM92 protocol" (PDF). {{cite web}}: Check |url= value (help)
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.