This is an introduction to the coherent-state representation of the generating functional of correlators for fermions. Ward's identities, Dyson's equations, and the effective potential are discussed for systems of electrons with Coulomb interaction.
An introduction to functional methods for many-body Green functions / L.G. Molinari. ((Intervento presentato al convegno Green's function methods : the next generation tenutosi a Toulouse nel 2013.
An introduction to functional methods for many-body Green functions
L.G. MolinariPrimo
2013
Abstract
This is an introduction to the coherent-state representation of the generating functional of correlators for fermions. Ward's identities, Dyson's equations, and the effective potential are discussed for systems of electrons with Coulomb interaction.
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