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http://hdl.handle.net/2445/9365| Title: | Finite-temperature T matrix in a real-time formalism |
| Author: | Canivell Cretchley, Víctor Garrido Beltrán, Lluís San Miguel Ruibal, Maximino Seglar, P. (Pedro) |
| Keywords: | Teoria quàntica Quantum kinetics |
| Issue Date: | 1978 |
| Publisher: | The American Physical Society |
| Abstract: | A generalized off-shell unitarity relation for the two-body scattering T matrix in a many-body medium at finite temperature is derived, through a consistent real-time perturbation expansion by means of Feynman diagrams. We comment on perturbation schemes at finite temperature in connection with an erroneous formulation of the Dyson equation in a paper recently published. |
| Note: | Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevA.17.480 |
| It is part of: | Physical Review A, 1978, vol. 17, núm. 1, p. 480-485. |
| URI: | http://hdl.handle.net/2445/9365 |
| Related resource: | http://dx.doi.org/10.1103/PhysRevA.17.480 |
| ISSN: | 1050-2947 |
| Appears in Collections: | Articles publicats en revistes (Física de la Matèria Condensada) |
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