Entanglement Swapping을 이용한 안전한 직접 통신 프로토콜
Secure Direct Communication protocol Using Entanglement Swapping
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참고문헌
초록
본 논문에서는 entanglement swapping을 이용하여 직접적인 통신이 가능한 통신 프로토콜을 제안한다. 이 프로토콜은 암호화된 메시지가 공개 채널 상으로 전달되지 않음으로 도청자로부터의 안전성을 높였다. 효율성에 있어서도 한 세션에 두 비트의 고전 정보가 전달되므로 Bostrom 과 Felbinger에 의해 제시된 ping-pong 프로토콜 보다 두배의 효율성 향상을 가져왔다. 본 프로토콜에서 사용하고 있는 검증 모드는 75%의 확률로 도청자의 존재를 확인할 수 있기 때문에 충분한 검증 절차를 거치면 이론적으로 도청자로부터 거의 완벽한 안전성을 보장 받을 수 있다.
Abstract
We propose a direct communication protocol using entanglement swapping. The safety of this protocol is guaranteed by the basic properties of entanglement swapping. This protocol is efficient to transmit two classical bits of information per one session. This efficiency is better than that of ping-pong protocol suggested by Bostrom and Felbinger. Even if an eavesdropper intervenes in midway, the eavesdropper will be detected with the probability of 75% in the verification process of one bit. Therefore the perfect security is guaranteed if we use enough amount of bits for the verification process.
참고문헌 (23)
- C. H. Benett, "Teleporting an unknown quantum state via dual classical and EPR channels", Phys. Rev. Lett., 70, pp.1895~1899 (1993)
- D. Boschi, "Experimental realization of teleporting an unknown pure quantum state via dual classical and Einstein-Podolski- Rosen channels", Phys. Rev. Lett., 80, pp.1121~1125 (1998)
- D. Bouwmeester,, "Experimental quantum teleportation", Nature,, 390(6660), pp.575~579 (1997)
- M. A. Nielsen, "Complete quantum teleportation using nuclear magnetic resornance.", Nature, 396(6706), pp.52~55 (1998)
- A. Ekert, "Quantum cryptography based on Bell's theorem", Phys. Rev. Lett., 67(661) (1991)
- A. Cabello,, "Quantum key distribution without alternative measurements", Phys. Rev. A, 61 (2000)
- H. Bechmann-Pasquinucci, "Incoherent and coherent eavesdropping in the six-state protocol of quantum cryptography.", Phys, Rev, A, 59(4238) (1999)
- M. Hillery, "Quantum secret sharing.", Phys. Rev. A, 59(1829) (1999)
- A. Cabello,, "Quantum key distribution without alternative measurements.", Phys. Rev. A, 61 (2000)
- D. Bruss, "Optimal Eavesdropping in Quantum Cryptography with Six States.", Phys. Rev. Lett, 81(3018) (1998)
- K. Bostrom, "Deterministic Secure Direct Communication Using Entanglement", Phys. Rev. Lett., 89(187902) (2002)
- S. Bandyopadhyay,, "Teleportation and secret sharing with pure entangled states", Phys. Rev. A, 62(012308) (2000)
- MAN Zhong-Xiao, "Deterministic secure direct communication by using swapping quantum entanglement and local unitary operation", Chin. Phys. Lett., 22(1) (2005)
- T. Gao, "Deterministic secure direct communication using GHZ states and swapping quantum entanglement.", J. Phys. A, 38(5761) (2005)
- D. Song, "Secure key distribution by swapping quantum entanglement.", Phys. Rev. A, 69(034301) (2004)
- S. Bose,, "Multiparticle generalization of entanglement swapping", hys. Rev. A, 57(822) (1998)
- B. Yurke, "Bell's-inequality experiments using independent-particle sources", Phys. Rev. A, 46(2229) (1992)
- M. Zukowski, "Event- ready-detectors Bell experiment via entanglement swapping", Phys. Rev. Lett., 71(4287) (1993)
- M. Koashi, "Quantum Cryptography Based on Split Transmission of One-Bit Information in Two Steps", Phys. Rev. Lett, 79(2383) (1997)
- A. beige,, "Acta Phys. Pol. A"
- Lo Hoi-Kwang Lo, "Science 283, 2050,", ~ (1999)
- Won-Young Hwang, "Quantum key distribution with high loss.", Phys. Rev. Lett., 91(057901) (2003)
- N. Lutkenhaus, "Security against individual attacks for realistic quantum key distribution", Phys. Rev. A, 61(052304) (2000)