Extension of quantum information theory to curved spacetimes

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution


    The representation of measurements by positive operator valued measures and the description of the most general state transformations by means of completely positive maps are two basic concepts of quantum information theory. These concepts can be trivially extended to field theories in curved spacetime if all the representations of canonical commutation or anticommutation relations are unitarily equivalent. We show that both concepts can be applied even when there is no such unitary equivalence.
    Original languageEnglish
    Title of host publicationProceedings of Quantum theory
    Subtitle of host publicationreconsideration of foundations
    EditorsA. Khrennikov
    Place of PublicationSweden
    PublisherVaxjo University Press
    Number of pages6
    Publication statusPublished - 2002
    EventQuantum theory: reconsideration of foundations - Vaxjo, Sweden
    Duration: 17 Jun 200121 Jun 2001


    ConferenceQuantum theory: reconsideration of foundations


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