Cutting rules for Feynman diagrams at finite temperature.
The imaginary part of the retarded self energy is of particular interest as it contains a lot of physical information about particle interactions. In higher order loop diagrams the calculation become extremely tedious and if we have to do the same at finite temperature, it includes an extra dimensio...
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| Language: | en_US |
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2010
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| Online Access: | http://hdl.handle.net/1993/3856 |