Selfcomplementary quantum channels

Smaczynski, Marek and Roga, Wojciech and Zyczkowski, Karol (2016) Selfcomplementary quantum channels. Open Systems & Information Dynamics, 23 (3). pp. 1-26. ISSN 1793-7191 (https://doi.org/10.1142/S1230161216500141)

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Abstract

Selfcomplementary quantum channels are characterized by such an interaction between the principal quantum system and the environment that leads to the same output states of both interacting systems. These maps can describe approximate quantum copy machines, as perfect copying of an unknown quantum state is not possible due to the celebrated no-cloning theorem. We provide here a parametrization of a large class of selfcomplementary channels and analyze their properties. Selfcomplementary channels preserve some residual coherences and residual entanglement. Investigating some measures of non-Markovianity, we show that time evolution under selfcomplementary channels is highly non-Markovian.

  • Item type:Article
    ID code:58578
    Dates:
    Date
    Event
    31 October 2016
    Published
    21 July 2016
    Accepted
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:10 Nov 2016 11:30
    Last modified:08 Apr 2024 23:15
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/58578
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