Another proof of Gell-Mann and Low's theorem
| dc.creator | Molinari, Luca Guido | |
| dc.date | 2006-12-11 | |
| dc.date.accessioned | 2026-07-07T08:05:57Z | |
| dc.date.available | 2026-07-07T08:05:57Z | |
| dc.description | The theorem by Gell-Mann and Low is a cornerstone in QFT and zero-temperature many-body theory. The standard proof is based on Dyson's time-ordered expansion of the propagator; a proof based on exact identities for the time-propagator is here given. | |
| dc.description | 5 pages | |
| dc.identifier | https://arxiv.org/abs/math-ph/0612030 | |
| dc.identifier | http://arxiv.org/abs/math-ph/0612030 | |
| dc.identifier | Journal of Mathematical Physics 48, 052113 (2007) | |
| dc.identifier | doi:10.1063/1.2740469 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/130444 | |
| dc.subject | Mathematical Physics | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Another proof of Gell-Mann and Low's theorem | |
| dc.type | text |