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  • General criteria for quantum state smoothing with necessary and sufficient criteria for linear Gaussian quantum systems

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    Embargoed until: 2021-04-09
    Author(s)
    Laverick, Kiarn T
    Chantasri, Areeya
    Wiseman, Howard M
    Griffith University Author(s)
    Chantasri, Areeya
    Laverick, Kiarn T.
    Wiseman, Howard M.
    Year published
    2020
    Metadata
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    Abstract
    ). However, this smoothing technique requires an observer (Alice, say) to know the nature of the measurement records that are unknown to her in order to characterize the possible true states for Bob’s (say) systems. If Alice makes an incorrect assumption about the set of true states for Bob’s system, she will obtain a smoothed state that is suboptimal, and, worse, may be unrealizable (not corresponding to a valid evolution for the true states) or even unphysical (not represented by a state matrix). However, this smoothing technique requires an observer (Alice, say) to know the nature of the measurement records that are unknown to her in order to characterize the possible true states for Bob’s (say) systems. If Alice makes an incorrect assumption about the set of true states for Bob’s system, she will obtain a smoothed state that is suboptimal, and, worse, may be unrealizable (not corresponding to a valid evolution for the true states) or even unphysical (not represented by a state matrix
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    Journal Title
    Quantum Studies: Mathematics and Foundations
    DOI
    https://doi.org/10.1007/s40509-020-00225-7
    Copyright Statement
    © 2020 Springer International Publishing Switzerland. This is an electronic version of an article published in Advances in Quantum Studies: Mathematics and Foundations, 2020. Advances in Intelligent Systems and Computing is available online at: http://link.springer.com/ with the open URL of your article.
    Note
    This publication has been entered in Griffith Research Online as an advanced online version.
    Subject
    Physical Sciences
    quant-ph
    Publication URI
    http://hdl.handle.net/10072/397770
    Collection
    • Journal articles

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