QFT for the Gifted Amateur by Lancaster & Blundell

I     The Universe as a set of harmonic oscillators

Chapter 1 – Lagrangians.pdf

Chapter 2 – Simple harmonic oscillators.pdf

Chapter 3 – Occupation number representation.pdf

Chapter 4 – Making second quantization work.pdf

II     Writing down Lagrangians

Chapter 5 – Continuous systems.pdf

Chapter 6 – A first stab at relativistic quantum mechanics.pdf

Chapter 7 – Examples of Lagrangians, or how to write down a theory.pdf

III     The need for quantum fields

Chapter 8 – The passage of time.pdf

Chapter 9 – Quantum mechanical transformations.pdf

Chapter 10 – Symmetry.pdf

Chapter 11 – Canonical quantization of fields.pdf

Chapter 12 – Examples of canonical quantization.pdf

Chapter 13 – Fields with many components and massive electromagnetism.pdf

Chapter 14 – Gauge fields and gauge theory.pdf

Chapter 15 – Discrete transformations.pdf

IV     Propagators and perturbations

Chapter 16 – Propagators and Green’s functions.pdf

Chapter 17 – Propagators and fields.pdf

Chapter 18 – The S-matrix.pdf

Chapter 19 – Expanding the S-matrix: Feynman diagrams.pdf

Chapter 20 – Scattering theory.pdf

V     Interlude: wisdom from statistical physics

Chapter 21 – Statistical physics: a crash course.pdf

Chapter 22 – The generating functional for fields.pdf

VI     Path integrals

Chapter 23 – Path integrals: I said to him, “You’re crazy”.pdf

Chapter 24 – Field integrals.pdf