# Variational calculations of dispersion coefficients for interactions among H, He, and Li atoms.

@article{Yan1996VariationalCO, title={Variational calculations of dispersion coefficients for interactions among H, He, and Li atoms.}, author={Yan and Babb and Dalgarno and Drake}, journal={Physical review. A, Atomic, molecular, and optical physics}, year={1996}, volume={54 4}, pages={ 2824-2833 } }

The dispersion coefficients ${\mathit{C}}_{6}$, ${\mathit{C}}_{8}$, and ${\mathit{C}}_{10}$ for the interactions among H, He, and Li are calculated using variational wave functions in Hylleraas basis sets with multiple exponential scale factors. With these highly correlated wave functions, significant improvements are made upon previous calculations and our results provide definitive values for these coefficients. \textcopyright{} 1996 The American Physical Society.

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## References

SHOWING 1-10 OF 65 REFERENCES

### Angular Momentum in Quantum Mechanics

- Physics
- 1957

This book offers a concise introduction to the angular momentum, one of the most fundamental quantities in all of quantum mechanics. Beginning with the quantization of angular momentum, spin angular…

### Phys

- Rev. A 52, 311
- 1995

### Phys

- Rev. A 45, 2736
- 1992

### Phys

- 68, 1426
- 1978

### J. Phys. B

- J. Phys. B
- 1995

### Adv. At. Mol. Phys

- Adv. At. Mol. Phys
- 1966

### Phys. Rev. A

- Phys. Rev. A
- 1992

### Phys

- 66, 191
- 1977

### J. Chem. Phys

- J. Chem. Phys
- 1978

### Phys. Rev. A

- Phys. Rev. A
- 1974