Multi-user quantum cryptography

Bing C. Wang; Patrick Kumavor; Susanne F. Yelin; Alan C. Beal

doi:10.1117/12.632251

24 October 2005 Multi-user quantum cryptography

Bing C. Wang, Patrick Kumavor, Susanne F. Yelin, Alan C. Beal

Proceedings Volume 6014, Active and Passive Optical Components for WDM Communications V; 601416 (2005) https://doi.org/10.1117/12.632251
Event: Optics East 2005, 2005, Boston, MA, United States

Abstract

Quantum cryptography applies the uncertainty principle and the no-cloning theorem of quantum mechanics to provide ultra-secure encryption key distribution between two parties. Present quantum cryptography technologies provide encryption key distribution between two parties. However, practical implementations encryption key distribution schemes require establishing secure quantum communications amongst multiple users. In this talk, we survey some of the state of the art quantum encryption deployment in communication networks. We will also discuss some common topologies that are being considered for multi-user quantum encryption networks. The performance of the multi-user quantum key distribution systems is then compared for four different optical network topologies: the Sagnac-based fiber ring, the wavelength routed, the passive star and the bus network. Their performances are compared and analyzed using quantum bit error rate analysis.

Citation Download Citation

Bing C. Wang, Patrick Kumavor, Susanne F. Yelin, and Alan C. Beal "Multi-user quantum cryptography", Proc. SPIE 6014, Active and Passive Optical Components for WDM Communications V, 601416 (24 October 2005); https://doi.org/10.1117/12.632251

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