Accession Number:

ADA279725

Title:

Temporal Rearrangement of Electronic Densities in Slow Atomic Collisions

Descriptive Note:

Technical rept.

Corporate Author:

FLORIDA UNIV GAINESVILLE QUANTUM THEORY PROJECT

Personal Author(s):

• Micha, D. A.

Report Date:

1994-05-16

Pagination or Media Count:

18.0

Abstract:

Electronic rearrangement in atomic interactions involve two very different time scales, for nuclear slow and electronic fast motions. This requires special care when one calculates solutions to the corresponding coupled differential equations. A method has been developed to treat the coupling of very different time scales, based on density operators in Liouville space. Its implementation in terms of density matrices, within an eikonalTDHF formulation, has allowed us to follow the time-evolution of atomic populations in ion-atom and ion-surface interactions.

Descriptors:

• *ELECTRONICS
• *DENSITY
• *ATOMIC PROPERTIES
• *COLLISIONS
• IONS
• SYMPOSIA
• INTERACTIONS
• QUANTUM THEORY
• FORMULATIONS
• MOTION
• LIOUVILLE EQUATION
• NUCLEAR PROPERTIES
• COUPLINGS
• ATOMS
• POPULATION
• TIME
• SURFACES
• ELECTRONIC STATES
• DIFFERENTIAL EQUATIONS
• WAVE FUNCTIONS

Subject Categories:

• Physical Chemistry
• Atomic and Molecular Physics and Spectroscopy
• Quantum Theory and Relativity

Distribution Statement:

APPROVED FOR PUBLIC RELEASE