Noisy bases in Hilbert space: A new class of thermal coherent states and their properties

A Vourdas, RF Bishop

    Research output: Chapter in Book/Conference proceedingChapterpeer-review

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    Abstract

    Coherent mixed states (or thermal coherent states) associated with the displaced harmonic oscillator at finite temperature, are introduced as a 'random' (or 'thermal' or 'noisy') basis in Hilbert space. A resolution of the identity for these states is proved and used to generalize the usual coherent state formalism for the finite temperature case. The Bargmann representation of an operator is introduced and its relation to the P and Q representations is studied. Generalized P and Q representations for the finite temperature case are also considered and several interesting relations among them are derived.
    Original languageEnglish
    Title of host publicationProceedings of the Second International Workshop on Harmonic Oscillators
    Subtitle of host publicationCocoyoc, Morelos, Mexico, March 23-25, 1994
    EditorsD Han, KB Wolf
    PublisherNational Aeronautics & Space Administration
    Pages195-206
    Number of pages12
    Publication statusPublished - 1995

    Publication series

    NameNASA Confererence Publication 3286

    Keywords

    • Bargmann operator; harmonic oscillators; Hilbert space; squeezed states (quantum theory); coherent radiation; thermal noise

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