On time-reversal and space-time harmonic processes for Markovian quantum channels

Francesco Ticozzi, Michele Pavon

Research output: Contribution to journalArticlepeer-review

Abstract

The time reversal of a completely-positive, nonequilibrium discrete-time quantum Markov evolution is derived in a general framework via a suitable adjointness relation. Space-time harmonic processes are then introduced for the forward and reverse-time transition mechanisms, and their role in the study of quantum dynamics is illustrated by discussing (operator and scalar) relative entropy dynamics.

Original languageEnglish (US)
Pages (from-to)551-574
Number of pages24
JournalQuantum Information Processing
Volume9
Issue number5
DOIs
StatePublished - Oct 2010

Keywords

  • H-theorem
  • Quantum channel
  • Space-time harmonic process
  • Time reversal

ASJC Scopus subject areas

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

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