NOC:Introduction to Quantum Field Theory (Theory of Scalar Fields)

Lecture 1 - Quantum Filed Theory

Lecture 2 - Quantizing Schrodinger Field

Lecture 3 - Quantizing Schrodinger Field (Continued...)

Lecture 4 - Symmetry and normalization of the states

Lecture 5 - A multiparticle system of Bosons

Lecture 6 - Klein-Gordon Equation

Lecture 7 - Quantization of Klein-Gordon Theory

Lecture 8 - Quantization of Klein-Gordon Theory (Continued...)

Lecture 9 - Quantization of Klein-Gordon Theory (Continued...)

Lecture 10 - Quantization of Klein-Gordon Theory (Continued...)

Lecture 11 - Quantization of Klein-Gordon Theory (Continued...)

Lecture 12 - Qunatization of Klein-Gordon Theory (Continued...)

Lecture 13 - Quantization of Klein-Gordon Theory (Continued...)

Lecture 14 - Feynman propagator - 2

Lecture 15 - Feynman propagator - 3

Lecture 16 - Symmetries

Lecture 17 - Lorentz transformations

Lecture 18 - Lorentz transformations (Continued...)

Lecture 19 - Lorentz Group

Lecture 20 - Groups and Generators

Lecture 21 - SU(3) Generators

Lecture 22 - Representation of groups. Poincare group

Lecture 23 - Poincare Algebra

Lecture 24 - Symmetries in Classical Field Theories

Lecture 25 - Symmetries (Continued...)

Lecture 26 - Symmetries (Continued...)

Lecture 27 - Symmetries (Continued...)

Lecture 28 - Noether's theorem: The Proof

Lecture 29 - Noether's theorem (Continued...)

Lecture 30 - Momentum in KG Theory

Lecture 31 - Noether Currents corresponding to Lorentz symmetry

Lecture 32 - Conserved currents and charges due to Lorentz symmetry

Lecture 33 - Conserved charges as symmetry generators

Lecture 34 - Consequences of symmetry

Lecture 35 - A boring world: Scattering in a free theory

Lecture 36 - Phi-4 Theory

Lecture 37 - Phi-4 Theory: Manipulating the ground state

Lecture 38 - Phi-4 Theory: Interaction picture - 1

Lecture 39 - Phi-4 Theory: Interaction picture - 2

Lecture 40 - Phi-4 Theory: Interaction picture (Continued...)

Lecture 41 - Phi-4 Theory: Interaction picture (Continued...)

Lecture 42 - Wick's Theorem

Lecture 43 - Wick's Theorem (Continued...)

Lecture 44 - Feynman Diagrams

Lecture 45 - Feynman Diagrams (Continued...)

Lecture 46 - Momentum space Feynman rules for G(x1,..xN)

Lecture 47 - Feynman rules for G(p1,p2,,,,pN)

Lecture 48 - Feynman rules for G(p1,p2,,,,pN) (Continued...)

Lecture 49 - Cancellation of Bubble diagrams

Lecture 50 - Examples of Feynman Diagrams

Lecture 51 - Survery