Lower bounds to energies for Gaussian wave functions: studies of the hydrogen-atom ground state
β Scribed by Schwartz, M E
- Book ID
- 120466798
- Publisher
- Institute of Physics
- Year
- 1967
- Weight
- 252 KB
- Volume
- 90
- Category
- Article
- ISSN
- 0370-1328
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π SIMILAR VOLUMES
Lower-bound estimates for the ground-state energy of the helium atom are determined using nonlinear programming techniques. Optimized lower bounds are determined for single-particle, radially correlated, and general correlated wave functions. The local nature of the method employed makes it a very s
## Abstract Combined CIβHY method techniques have been employed in obtaining a 57βterm CIβHY wave function with an energy of β14.66632 a.u. A method due to Brown has been adopted for obtaining this wave function and various shorter expansions. A 44βterm expansion with an energy of β14.66606 a.u. is