@article {56877624,
	title = {Classical S-matrix limit of wave packet dynamics},
	journal = {J. Chem. Phys.},
	volume = {65},
	year = {1976},
	pages = {4979},
	abstract = {The asymptotic (h/{\textrightarrow}0) equivalence of the Miller{\textendash}Marcus classical S-matrix theory and Gaussian wave packet dynamics is shown. This result is not suprising, but the analysis yields considerable insight into both methods. Both approaches are seen to rely upon a linear response of dynamical variables against small changes in initial conditions. However, the two theories {\textquoteright}{\textquoteright}back off{\textquoteright}{\textquoteright} the h/{\textrightarrow}0 limit in a very different manner. Wave packets emerge as a kind of a p r i o r i uniformization procedure as opposed to the a p o s t e r i o r i uniformizations of classical S-matrix theory. In certain contexts the wave packets are shown to provide a parabolic cylinder function uniformization of the primitive semiclassical result. Wave packets in generalized coordinates are discussed. Analogy with classical S-matrix theory suggests new procedures for through-barrier tunneling of individual wave packets.},
	doi = {10.1063/1.432974},
	url = {http://dx.doi.org/10.1063/1.432974},
	author = {Heller, EricJ.}
}
