On Classification of Quantum Channels View Full Text


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Article Info

DATE

2001-03

AUTHORS

Satoshi Iriyama, Noboru Watanabe

ABSTRACT

Quantum mutual entropy and quantum capacity are rigorously defined by Ohya, and they are quite useful in the study of quantum communication processes. Mathematical models of optical communication processes are described by a quantum channel and optical states, and quantum capacity is one of the most important criteria to measure the efficiency of information transmission. In actual optical communication, a laser beam is used for a signal, and it is denoted mathematically by a coherent state. Further, optical communication using a squeezed state, which is expected to be more efficient than that using a coherent state is proposed. In this paper, we define several quantum channels, that is, a squeezed channel and a coherent channel and so on. We compare them by calculating quantum capacity. More... »

PAGES

73-88

References to SciGraph publications

  • 1993. Quantum Entropy and Its Use in NONE
  • 1999-03. Fundamentals of Quantum Mutual Entropy and Capacity in OPEN SYSTEMS & INFORMATION DYNAMICS
  • 1998-01. Numerical Computation of Quantum Capacity in INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
  • 1960. Norm Ideals of Completely Continuous Operators in NONE
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1023/a:1011365917780

    DOI

    http://dx.doi.org/10.1023/a:1011365917780

    DIMENSIONS

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