Collisional Semiclassical Aproximations in Phase-Space Representation

Details Collisional Semiclassical Aproximations in Phase-Space Representation Collisional Semiclassical Aproximations in Phase-Space Representation

1997-02-06

arxiv.org/abs/physics/9702007v1

Physics

Atomic Physics

20 pages, REVTEX, no figures, 3 tables included

Scientific paper

10.1103/PhysRevA.56.2825

The Gaussian Wave-Packet phase-space representation is used to show that the expansion in powers of $\hbar$ of the quantum Liouville propagator leads, in the zeroth order term, to results close to those obtained in the statistical quasiclassical method of Lee and Scully in the Weyl-Wigner picture. It is also verified that propagating the Wigner distribution along the classical trajectories the amount of error is less than that coming from propagating the Gaussian distribution along classical trajectories.

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