A Guide To Feynman Diagrams In The Many Body Problem Richard D Mattuck. Quantum field theory and critical phenomena. Dover publications new york 1992 isbn 0 486 67047 3 englisch.
Quantum field theory and critical phenomena. N double time green functions in statistical physics soviet physics uspekhi 33. A guide to feynman diagrams in the many body problem.
In strongly correlated materials the elementary excitations are so far from being independent that it is not even useful as a starting point to treat them as independent.
2003 isbn 0 19 850923 5 eine sehr umfangreiche darstellung die beiden gesichtspunkten gerecht wird. It is therefore a very effective approach to simplify the many body problem in quantum mechanics. 1992 a guide to feynman diagrams in the many body problem dover publications isbn 0 486 67047 3. Distinction between quasiparticles and collective.