Quantum cryptography: Security criteria reexamined

Dagomir Kaszlikowski, Ajay Gopinathan, Yeong Cherng Liang, L. C. Kwek, Berthold Georg Englert

研究成果: Article同行評審

12 引文 斯高帕斯(Scopus)

摘要

The generally accepted security criteria for a whole class of protocols for quantum cryptography was analyzed. It was shown that the security criteria are flawed. The reason of the flaw was a standard assumption of the security analysis, namely that the so-called square-root measurement is optimal for eavesdropping purposes, is not true in general. The results show that there are rather large parameter regimes in which the optimal measurement extracts substantially more information that the square-root measurement.

原文English
文章編號032306
頁(從 - 到)032306-1-032306-5
期刊Physical Review A - Atomic, Molecular, and Optical Physics
70
發行號3
DOIs
出版狀態Published - 2004 九月

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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