A Study of Channel Estimation and Postprocessing in Quantum Key Distribution Protocols

Details A Study of Channel Estimation and Postprocessing in Quantum Key Distribution Protocols A Study of Channel Estimation and Postprocessing in Quantum Key Distribution Protocols

2009-04-13

arxiv.org/abs/0904.1912v1

Physics

Quantum Physics

PhD thesis, March 2009, Tokyo Institute of Technology. 133 pages, 7 figures

Scientific paper

This thesis investigate the channel estimation and the postprocessing of the quantum key distribution protocols. In particular, we propose a new channel estimation procedure, in which we utilize the bit sequences transmitted and received by different bases, and a new postprocessing with two-way classical communication. Then, we show that the key generation rates of the QKD protocols with our channel estimation and/or our postprocessing are higher than those with conventional ones.

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