Phase-space analysis of bosonic spontaneous emission. Olsen, K, M, Plimak, L., Rebic, S, Bradley, & S, A. 254(4-6):271--281, 2005. doi abstract bibtex 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. (c) 2005 Elsevier B.V. All rights reserved.
@article{ Olsen:2005hi,
author = {Olsen, M K and Plimak, LI and Rebic, S and Bradley, Ashton S},
title = {{Phase-space analysis of bosonic spontaneous emission}},
year = {2005},
volume = {254},
number = {4-6},
pages = {271--281},
affiliation = {Univ Queensland, ARC Ctr Excellence Quantum Atom Opt, Sch Phys Sci, Brisbane, Qld 4072, Australia},
doi = {10.1016/j.optcom.2005.06.006},
language = {English},
rating = {0},
date-added = {2009-02-03T21:36:13GMT},
date-modified = {2015-04-08T22:48:10GMT},
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. (c) 2005 Elsevier B.V. All rights reserved.},
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}
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