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 relationship
β¦ LIBER β¦
Many-body Green functions of q-deformed oscillators
β Scribed by Joseph L. Birman
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 294 KB
- Volume
- 167
- Category
- Article
- ISSN
- 0375-9601
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