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)


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
Issue number4-6
Publication statusPublished - 15 Oct 2005


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


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