Cryptographic Distinguishability Measures for Quantum-Mechanical States

  title={Cryptographic Distinguishability Measures for Quantum-Mechanical States},
  author={Christopher A. Fuchs and Jeroen van de Graaf},
  journal={IEEE Trans. Inf. Theory},
This paper, mostly expository in nature, surveys four measures of distinguishability for quantum-mechanical states. This is done from the point of view of the cryptographer with a particular eye on applications in quantum cryptography. Each of the measures considered is rooted in an analogous classical measure of distinguishability for probability distributions: namely, the probability of an identification error, the Kolmogorov distance, the Bhattacharyya coefficient, and the Shannon (1948… 

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