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A direct calculation of the excitation energies of closed-shell systems using the green function techniqueM

✍ Scribed by J. C̆íz̆ek; J. Paldus

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
198 KB
Volume
6
Category
Article
ISSN
0020-7608

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📜 SIMILAR VOLUMES

On a new partitioning of the Hamiltonian
On a new partitioning of the Hamiltonian in many-body calculation of pair-correlation energies in closed-shell systems
✍ Atri Mukhopadhyay; Raj Kumar Moitra; Debashis Mukherjee 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 English ⚖ 476 KB

## Abstract We introduce here a new partitioning of the Hamiltonian in calculating pair‐correlation energies using many‐body perturbation theory, by which we are able to eliminate the off‐diagonal particle–hole (__p__–__h__) ladders exactly to all orders in the perturbation expansion. In this formu