Time Reversal and Many-Body Non-equilibrium Green Functions
โ Scribed by L. Banyai; K. Elsayed
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 509 KB
- Volume
- 233
- Category
- Article
- ISSN
- 0003-4916
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โฆ Synopsis
A detailed discussion of the relationships following from time reversal invariance or covariance of many-body theories is given. The discussion includes equilibrium and nonequilibrium Keldysh Green functions. It is shown that self-consistent RPA approximations conserve the above deduced relationships. 1994 Academic Press, Inc.
๐ SIMILAR VOLUMES
The principles of an efficient, fast algorithm for the calculation of diagrams appearing in Green function and many-body perturbation methods are discussed and timing examples are given. Within the suggested algorithm, the third order-diagrams required in the Green function approach are evaluated by