Atomic physics of strongly correlated systems. Progress report, 1 February 1985-15 January 1986

Technical Report · Wed Jan 01 00:00:00 EST 1986

OSTI ID:6101526

Lin, C D

In the study of electron correlations we have reexamined the quantum numbers K, T and A used for the classification of doubly excited states by studying the wave functions in a body-frame of the atom. This allows us to identify the relation of these quantum numbers to the molecule-like normal modes. Specifically we showed that K is similar to the vibrational mode of a triatomic molecule, T is the projection of the orbital angular momentum onto the body-frame axis passing the interelectronic line and A is similar to the symmetric and anti-symmetric stretch modes of the atoms in a molecule. In the area of ion-atom collisions we have extended the AO-MO matching method to two-electron collision systems. In this method, we expand the total electronic wave function at large internuclear separations in terms of travelling atomic orbitals and at small distances in terms of stationary molecular orbitals; the solutions in the two regions are matched at two points. We have developed this method for one-electron collision systems and the method has now been applied to p-He collisions. Our calculations are in good agreement with existing data. Our other predictions on alignment and orientation parameters are being tested by experimentalists. We have also made progress in incorporating electron correlations in the study of charge transfer.

• Research Organization: Kansas State Univ., Manhattan (USA). Dept. of Physics
• DOE Contract Number: AC02-79ER10514
• OSTI ID: 6101526
• Report Number(s): DOE/ER/10514-35; ON: DE86007466
• Resource Relation: Other Information: Paper copy only, copy does not permit microfiche production
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
EXCITED STATES
MOLECULAR MODELS
ION-ATOM COLLISIONS
EXCITATION
IONIZATION
QUANTUM NUMBERS
WAVE FUNCTIONS
ATOM COLLISIONS
COLLISIONS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
FUNCTIONS
ION COLLISIONS
MATHEMATICAL MODELS
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena