@article {fiete2003semiclassical,
	title = {Semiclassical theory of coherence and decoherence},
	journal = {Physical Review A},
	volume = {68},
	year = {2003},
	pages = {022112},
	publisher = {APS},
	abstract = {A general semiclassical approach to quantum systems with system-bath interactions is developed. We study system decoherence in detail using a coherent-state semiclassical wave-packet method which avoids singularity issues arising in the usual Green{\textquoteright}s function approach. We discuss the general conditions under which it is approximately correct to discuss quantum decoherence in terms of a {\textquotedblleft}dephasing{\textquotedblright} picture and we derive semiclassical expressions for the phase and phase distribution. Remarkably, an effective system wavefunction emerges whose norm measures the decoherence and is equivalent to a density-matrix formulation.},
	url = {https://doi.org/10.1103/PhysRevA.68.022112},
	author = {Fiete, Gregory A and Heller, EricJ.}
}
