▪ Abstract This review focuses on time-dependent methods suitable for simulating the
quantum dynamics of processes in large clusters and condensed-phase environments. A …

We show that a bounded, isolated quantum system of many particles in a specific initial state
will approach thermal equilibrium if the energy eigenfunctions which are superposed to form …

Gaussian wavepacket methods are an attractive way to solve the time-dependent
Schrödinger equation (TDSE). They have an underlying trajectory picture that has a natural …

Interpreting wave phenomena in terms of an underlying ray dynamics adds a new
dimension to the analysis of linear wave equations. Forming explicit connections between …

The semiclassical (SC) initial value representation (IVR) provides a potentially practical way
for adding quantum mechanical effects to classical molecular dynamics (MD) simulations of …

1. General Aspects 2. Normal-Mode Taylor Expansion 3. A Model of Nonadiabatic
Photoisomerization III. Time-Dependent Methodology A. Representation of the State Vector …

A graduate-level text that examines the semiclassical approach to quantum mechanics
Physical systems have been traditionally described in terms of either classical or quantum …

We discuss and give evidence for the existence of a new mechanism for quantum dynamical
tunneling. It may occur when a quantum system's underlying classical dynamics are far from …

Quantum chaos of many-body (MB) systems has been swiftly developing into a vibrant
research area at the interface between various disciplines, ranging from statistical physics to …

Abstract In a recent Letter [Phys. Rev. Lett. 67, 664 (1991)] we found semiclassical
propagation to be remarkably accurate in the chaotic stadium billiard long after classical fine …