@article {heller1991cellular,
	title = {Cellular dynamics: A new semiclassical approach to time-dependent quantum mechanics},
	journal = {The Journal of chemical physics},
	volume = {94},
	year = {1991},
	pages = {2723{\textendash}2729},
	publisher = {AIP Publishing},
	abstract = {A new semiclassical approach that constructs the full semiclassical Green{\textquoteright}s function propagation of any initial wave function directly from an ensemble of real trajectories, without root searching, is presented. Each trajectory controls a cell of initial conditions in phase space, but the cell area is not constrained by Planck{\textquoteright}s constant. The method is shown to be accurate for rather long times in anharmonic oscillators, indicating the semiclassical time-dependent Green{\textquoteright}s function is clearly worthy of more study. The evolution of wave functions in anharmonic potentials is examined and a spectrum from the semiclassical correlation function is calculated, comparing with exact fast Fourier transform results.},
	url = {http://dx.doi.org/10.1063/1.459848},
	author = {Heller, EricJ.}
}
