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Remarks on concavity of the auxiliary function appearing in quantum reliability function in classical-quantum channels

Authors
Publisher
Institute of Electrical and Electronics Engineers
Publication Date
Keywords
  • Quantum Reliability Function
  • Random Coding Exponent
  • Quantum Information Theory
Disciplines
  • Physics

Abstract

This is an extension of results represented in ISIT2003. Concavity of the auxiliary function which appears in the random coding exponent as the lower bound of the quantum reliability function for general quantum states is proven for 0 /spl les/ s /spl les/ 1.

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