Spectral properties of four-time fermionic Green's functions
Journal Article
·
· Condensed Matter Physics
- Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine, Lviv (Ukraine)
The spectral relations for the four-time fermionic Green's functions are derived in the most general case. The terms which correspond to the zero-frequency anomalies, known before only for the bosonic Green's functions, are separated and their connection with the second cumulants of the Boltzmann distribution function is elucidated. Furthermore, the high-frequency expansions of the four-time fermionic Green's functions are provided for different directions in the frequency space.
- Research Organization:
- Georgetown Univ., Washington, DC (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- FG02-08ER46542
- OSTI ID:
- 1361678
- Journal Information:
- Condensed Matter Physics, Vol. 19, Issue 3; ISSN 1607-324X
- Publisher:
- Institute for Condensed Matter PhysicsCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 5 works
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