Phase-space analysis of bosonic spontaneous emission

M. K. Olsen*, L. I. Plimak, S. Rebić, A. S. Bradley

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    8 Citations (Scopus)

    Abstract

    We present phase-space techniques for the modelling of spontaneous emission in two-level bosonic atoms. The positive-P representation is shown to give a full and complete description within the limits of our model. The Wigner representation, even when truncated at second order, is shown to need a doubling of the phase-space to allow for a positive-definite diffusion matrix in the appropriate Fokker-Planck equation and still fails to agree with the full quantum results of the positive-P representation. We show that quantum statistics and correlations between the ground and excited states affect the dynamics of the emission process, so that it is in general non-exponential.

    Original languageEnglish
    Pages (from-to)271-281
    Number of pages11
    JournalOptics Communications
    Volume254
    Issue number4-6
    DOIs
    Publication statusPublished - 15 Oct 2005

    Keywords

    • Many-body effects
    • Phase-space representations
    • Spontaneous emission

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