Temporal Rearrangement of Electronic Densities in Slow Atomic Collisions

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 eikonal/TDHF formulation, has allowed us to follow the time-evolution of atomic populations in ion-atom and ion-surface interactions.

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Document Details

Document Type
Technical Report
Publication Date
May 16, 1994
Accession Number
ADA279725

Entities

People

  • D. A. Micha

Organizations

  • University of Florida

Tags

DTIC Thesaurus Topics

  • Collisions
  • Coupling (Interaction)
  • Couplings
  • Differential Equations
  • Equations
  • Mathematics
  • Personal Information Managers

Fields of Study

  • Physics

Readers

  • Molecular Photonics/Laser Physics
  • Plasma Physics / Magnetohydrodynamics
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.

Technology Areas

  • Microelectronics
  • Space