Imaginary part in thermo field dynamics
- 15 January 1986
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 33 (2) , 590-593
- https://doi.org/10.1103/physrevd.33.590
Abstract
We investigate the imaginary part of Feynman diagrams in a real-time finite-temperature formalism, thermo field dynamics. Interesting relations are found which lead to a simple derivation of the imaginary part of self-energy diagrams.Keywords
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