Quantum dynamics simulations can be improved using novel quasiprobability distributions based on non-orthogonal hermitian kernel operators. This introduces arbitrary functions (gauges) into the stochastic equations, which can be used to tailor them for improved calculations. A possible application to full quantum dynamic simulations of BEC's is presented.
@article{arxiv.quant-ph/0203108,
title = {Stochastic gauges in quantum dynamics for many-body simulations},
author = {P. Deuar and P. D. Drummond},
journal= {arXiv preprint arXiv:quant-ph/0203108},
year = {2009}
}