Here’s a concise review of Quantum Theory of Many-Particle Systems by Alexander L. Fetter and John Dirk Walecka, with a specific focus on the aspect often sought by graduate students and researchers.
: Detailed coverage of second quantization, Green's functions, and field theory for both fermions and bosons. “exclusive PDF” Here’s a concise review of Quantum
Let's be direct: The book is legally available. Dover Publications still sells it as an affordable paperback (usually $25-$35). Furthermore, Professor Walecka (now in his 90s) has generously made many of his later lecture notes available online for free. Let's be direct: The book is legally available
A rigorous look at Hartree-Fock theory and the Random Phase Approximation (RPA). References Definition The Electron Gas: A rigorous look
The text provides a self-contained introduction to the mathematical tools required to analyze systems with large degrees of freedom: