Three-body recombination of ultracold Bose gases using the truncated   Wigner method
  We apply the truncated Wigner method to the process of three-body recombination in ultracold Bose gases. We find that within the validity regime of the Wigner truncation for two-body scattering, three-body recombination can be treated using a set of coupled stochastic differential equations that include diffusion terms, and can be simulated using known numerical methods. As an example we investigate the behaviour of a simple homogeneous Bose gas. 
A. A. Norrie, R. J. Ballagh, C. W. Gardiner and A. S. Bradley