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    Interpolation between phase space quantities with bifractional displacement operators

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    Publication date
    2015-02-06
    Author
    Agyo, Sanfo D.
    Lei, Ci
    Vourdas, Apostolos
    Keyword
    Fractional Fourier Transform; Phase space methods; Wigner functions
    Peer-Reviewed
    Yes
    
    Metadata
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    Abstract
    Bifractional displacement operators, are introduced by performing two fractional Fourier transforms on displacement operators. They are shown to be special cases of elements of the group G , that contains both displacements and squeezing transformations. Acting with them on the vacuum we get various classes of coherent states, which we call bifractional coherent states. They are special classes of squeezed states which can be used for interpolation between various quantities in phase space methods. Using them we introduce bifractional Wigner functions A(α,β;θα,θβ)A(α,β;θα,θβ), which are a two-dimensional continuum of functions, and reduce to Wigner and Weyl functions in special cases. We also introduce bifractional Q-functions, and bifractional P-functions. The physical meaning of these quantities is discussed.
    URI
    http://hdl.handle.net/10454/7340
    Version
    No full-text available in the repository
    Citation
    Agyo S, Lei C and Vourdas A (2015) Interpolation between phase space quantities with bifractional displacement operators. Physics Letters A. 379 (4): 255–260.
    Link to publisher’s version
    http://dx.doi.org/10.1016/j.physleta.2014.11.034
    Type
    Article
    Collections
    Engineering and Informatics Publications

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