Exact lower bounds for the ground state energy of correlated Fermi systems
β Scribed by Roser Valenti; P.J. Hirschfeld; Joachim Stolze; Claudius Gros
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 214 KB
- Volume
- 185-189
- Category
- Article
- ISSN
- 0921-4534
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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
The optimized inner projection (OIP) technique, which is equivalent to the method of intermediate Hamiltonians (MIH), is applied to the PPP and Hubbard models of the benzene molecule. Both these methods are applicable since the electrostatic part of the PPP and Hubbard Hamiltonians is positive defin