Theory of Electronic, Atomic, and Molecular Calculations,

Abstract

The general approach is to develop computational methods that are quantitative in the sense of being based on the exact formal theory of the processes considered, and are practicable, in the sense of being capable of implementation on digital computers at the present level of technology. For atom-molecule scattering, a new method is being developed that extends a recent theory of the action constants of nonseparable dynamical systems to collision problems. For electron-molecule scattering, a new method for treating vibrational and rotational excitation has been developed, formal theoretical relations needed in detailed applications of this method are being derived, and a new variational approach to quantitative fixed-nuclei calculations is being planned for practical implementation. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1980
Accession Number
ADA082891

Entities

People

  • Robert K. Nesbet

Organizations

  • International Business Machines Corporation (Armonk, NY)

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Chemistry
  • Collisions
  • Computational Chemistry
  • Computational Science
  • Digital Computers
  • Dynamics
  • Electron Scattering
  • Electrons
  • Equations
  • Exchange Reactions
  • Experimental Data
  • Molecular Physics
  • Molecules
  • Multichannel
  • Polyatomic Molecules
  • Quantum Chemistry
  • Scattering

Fields of Study

  • Physics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Molecular Photonics/Laser Physics
  • Systems Analysis and Design

Technology Areas

  • Microelectronics