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Proceedings of 2009 International Symposium on Computer Science and Computational Technology (ISCSCT 2009)

Huangshan, China, December 26-28, 2009

Editors: Fei Yu, Guangxue Yue, Jian Shu, Yun Liu

AP Catalog Number: AP-PROC-CS-09CN005

ISBN: 978-952-5726-07-7 (Print), 978-952-5726-08-4 (CD-ROM)

Page(s): 365-368

Determinant Quantum Key Distribution Via Entanglement Swapping

Nanrun Zhou, Xiawen Xiao, Lijun Wang, and Lihua Gong

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The efficiency of the quantum key agreement protocol that was designed by replacing classical channel with a quantum one during quantum teleportation is reanalyzed and an improved quantum key distribution protocol is presented by making best of the properties of entanglement swapping. The improved quantum key distribution protocol is secure because the key bits only depend on the random measurement results and are independent of the states when transmitting over the channel, moreover, the eavesdropping can be detected by comparing a subset of the resulting key bits.

Index Terms

quantum key distribution, teleportation, entanglement swapping, information security

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