Please use this identifier to cite or link to this item: http://hdl.handle.net/10497/15683
Title: 
Quantum cryptography: Security criteria reexamined
Authors: 
Issue Date: 
2004
Citation: 
Kaszlikowski, D., Gopinathan, A., Liang, Y. C., Kwek, L. C., & Englert, B. G. (2004). Quantum cryptography: Security criteria reexamined. Physical Review A, 70(3), 032306.
Abstract: 
We find that the generally accepted security criteria are flawed for a whole class of protocols for quantum
cryptography. This is so because 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. There are rather large
parameter regimes in which the optimal measurement extracts substantially more information than the squareroot
measurement.
URI: 
ISSN: 
1050-2947
Other Identifiers: 
10.1103/PhysRevA.70.032306
Website: 
Appears in Collections:Journal Articles

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