Lattice, Time-Dependent Schr{umlt o}dinger Equation Solution for Ion-Atom Collisions

Journal Article · Sat May 01 00:00:00 EDT 1999 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.82.3976· OSTI ID:341407

Schultz, D R; Strayer, M R ^[1]; Wells, J C ^[2]

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1. Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6373 (United States)
2. Center for Computational Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6203 (United States)

Utilizing a lattice representation of the wave function and operators, we have solved the time-dependent Schr{umlt o}dinger equation over a wide range of collision energies and impact parameters to study excitation to low-lying states in collisions of protons with atomic hydrogen. The technique circumvents many of the shortcomings of commonly applied close coupling and perturbation theory approaches that are valid only in restricted regimes. Thus, the investigation represents a step towards precise knowledge of the dynamical quantities characterizing this and other fundamental collisions. {copyright} {ital 1999} {ital The American Physical Society}

• Research Organization: Oak Ridge National Laboratory
• DOE Contract Number: AC05-96OR22464
• OSTI ID: 341407
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 20 Vol. 82; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
EXCITED STATES
HYDROGEN
ION-ATOM COLLISIONS
MATHEMATICAL OPERATORS
NUMERICAL SOLUTION
PROTONS
SCHROEDINGER EQUATION
WAVE FUNCTIONS