Lectures related to Quartic interaction

Explores Goldstone bosons and the Higgs mechanism, revealing how spontaneous symmetry breaking generates mass for gauge bosons.

Covers normal ordered product and Wick's theorem in quantum field theory.

Covers the theory of scalar fields, stability of fixed points, eigenvalues, Lagrangian interactions, tensors, and beta functions.

Explores the Renormalization Group in field theory, discussing scaling functions, critical exponents, and Gaussian fixed points.

Explores renormalization, scaling, critical points, exponents, and phase transitions in conformal field theory and quantum gravity.