VARIATIONAL CALCULATIONS OF LONG RANGE FORCES.
Scientific rept. no. 11, 1 Aug 64-31 Jul 66,
QUEEN'S UNIV BELFAST (NORTHERN IRELAND) DEPT OF APPLIED MATHEMATICS
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The coefficients of the R exp.-4, R exp.-6 and R exp.-8 terms in the series representation of the long range interaction between two atomic systems at separation R are evaluated by a two - centre variational procedure, using highly refined ground state wave functions. Calculations are carried out for all atom - atom and atom - ion pairs drawn from the one- and two - electron systems H, He, He, Li and H-. The values for the R exp.-6 coefficient are in excellent agreement with the values previously derived from oscillator strength data. Author
- Atomic and Molecular Physics and Spectroscopy
- Quantum Theory and Relativity