Introduces second quantization , field operators for fermions and bosons, and the perturbative expansion of the propagator.
Dedicates specific sections to transformations that simplify complex interacting systems into manageable independent-particle models. Dover Publications | Dover Books 📚 Structure and Coverage Introduces second quantization
The book's significance can be attributed to several factors: field operators for fermions and bosons
: Detailed development of zero-temperature field theory for fermions and bosons, followed by finite-temperature formalism and real-time linear response. Introduces second quantization
Fetter and Walecka apply these formalisms to several diverse physical systems:
: A deep dive into ground-state formalism for both fermions and bosons. Physical Applications
