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Proceedings Paper

Principles and improvements of quadrature-based QKD
Author(s): Wenhao Hu; Di Shu; Daqing Wang; Yu Liu
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Paper Abstract

An overview of quadrature-based quantum key distribution is provided. Beginning from the comparison between single-photon schema and continuous variable schema, the article focuses on the classical and state-of-art protocols. Protocols' main procedures and security analysis are introduced, which includes the methods under individual attack and collective attack. Then recent development of unconditional security proof is introduced including the optimality of Gaussian attack and de Finetti theorem. Introduction towards discrete modulated schemas' security proof is also made. At last, the article discusses experimental realization of various protocols and the main trend in this field.

Paper Details

Date Published: 4 November 2010
PDF: 12 pages
Proc. SPIE 7846, Quantum and Nonlinear Optics, 78460K (4 November 2010); doi: 10.1117/12.870347
Show Author Affiliations
Wenhao Hu, Huazhong Univ. of Science and Technology (China)
Di Shu, Huazhong Univ. of Science and Technology (China)
Daqing Wang, Huazhong Univ. of Science and Technology (China)
Yu Liu, Huazhong Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 7846:
Quantum and Nonlinear Optics
Qihuang Gong; Guang-Can Guo; Yuen-Ron Shen, Editor(s)

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