S. Kumar et al., OVERCOMING THE ZERO-POINT DILEMMA IN QUASI-CLASSICAL TRAJECTORIES - (HE,H-2(-CASE()) AS A TEST), The Journal of chemical physics, 103(14), 1995, pp. 6021-6028
We present a new technique for circumventing the problem of the zero-p
oint leak in classical trajectories by extending the action-billiard a
pproach of de Aguiar and Ozorio de Almeida [Nonlinearity 5, 523 (1992)
]. In addition to demonstrating its utility in a model problem, we exa
mine the application of various methods of overcoming the zero-point l
eak in the case of collinear He+H-2(+) collisions. We also show that n
ot neglecting leaky trajectories gives, on an average, good agreement
with quantal results for collinear as well as 3-dimensional collisions
. (C) 1995 American Institute of Physics.