Variational solution of the T-matrix integral equation
| dc.creator | Nechaev, I. A. | |
| dc.creator | Chulkov, E. V. | |
| dc.date | 2004-11-06 | |
| dc.date | 2005-03-08 | |
| dc.date.accessioned | 2026-07-07T03:01:55Z | |
| dc.date.available | 2026-07-07T03:01:55Z | |
| dc.description | We present a variational solution of the T-matrix integral equation within a local approximation. This solution provides a simple form for the T matrix similar to Hubbard models but with the local interaction depending on momentum and frequency. By examining the ladder diagrams for irreducible polarizability, a connection between this interaction and the local-field factor is established. Based on the obtained solution, a form for the T-matrix contribution to the electron self-energy in addition to the GW term is proposed. In the case of the electron-hole multiple scattering, this form allows one to avoid double counting. | |
| dc.description | 7 pages, 7 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0411170 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0411170 | |
| dc.identifier | Phys. Rev. B 71, 115104 (2005) | |
| dc.identifier | doi:10.1103/PhysRevB.71.115104 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/25221 | |
| dc.subject | Other Condensed Matter | |
| dc.title | Variational solution of the T-matrix integral equation | |
| dc.type | text |