- #1
ledamage
- 36
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Hi there!
In some papers related to statistical field theory and condensed matter I've encountered the ladder approximation. It apparently corresponds to the summation of a certain class of Feynman diagrams. I've tried Google and some field theory books to learn more about this but I've found nothing, at least nothing pedagogigal.
Does anyone know a book which explains the ladder approximation? I want to know how it exactly works, in which cases it can be used and what the approximation actually neglects.
Thanks!
ledamage
In some papers related to statistical field theory and condensed matter I've encountered the ladder approximation. It apparently corresponds to the summation of a certain class of Feynman diagrams. I've tried Google and some field theory books to learn more about this but I've found nothing, at least nothing pedagogigal.
Does anyone know a book which explains the ladder approximation? I want to know how it exactly works, in which cases it can be used and what the approximation actually neglects.
Thanks!
ledamage