On S-mixing entropy of quantum channels

Farrukh Mukhamedov, Noboru Watanabe

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


In this paper, an S-mixing entropy of quantum channels is introduced as a generalization of Ohya’s S-mixing entropy. We investigate several properties of the introduced entropy. Moreover, certain relations between the S-mixing entropy and the existing map and output entropies of quantum channels are investigated as well. These relations allowed us to find certain connections between separable states and the introduced entropy. Hence, there is a sufficient condition to detect entangled states. Moreover, several properties of the introduced entropy are investigated. Besides, entropies of qubit and phase-damping channels are calculated.

Original languageEnglish
Article number148
JournalQuantum Information Processing
Issue number6
Publication statusPublished - Jun 1 2018


  • Map entropy
  • Ohya mixing entropy
  • Output entropy
  • Quantum channel
  • Qubit

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Statistical and Nonlinear Physics
  • Theoretical Computer Science
  • Signal Processing
  • Modelling and Simulation
  • Electrical and Electronic Engineering


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