Lectures related to Perturbation theory

Discusses the SVZ method for calculating non-perturbative corrections in quantum field theory.

Discusses the SVZ sum rules and their application in quantum field theory, focusing on trans-series and non-perturbative corrections.

Covers perturbation theory for time-independent cases, explaining non-degenerate scenarios and energy level perturbations.

Covers cross section, lifetime, quantum fluid, asymptotic states, discrete symmetries, and normal ordering in quantum field theory.

Explores time-dependent quantum mechanics, perturbation theory, and atom-field interactions.

Covers Møller-Plesset perturbation theory, focusing on energy corrections and Slater-Condon rules.

Explores time-dependent perturbation theory in quantum physics from an interaction point of view.

Covers Euclidean path integrals and the thermal partition function in Quantum Field Theory.

Explores functional methods in quantum field theory, coupling systems to external sources and introducing the path integral with source.

Explores the dilute instanton gas approximation and the importance of multi-instanton solutions in quantum field theory.

Covers the theory of time-independent perturbations and the harmonic oscillator.

Explores transition probabilities in first-order perturbation theory with time-dependent perturbations and disturbance theory.

Explores the analytic structure of Green's function, bound and scattering states, and perturbation theory.

Covers the basics of time-dependent perturbation theory and its applications in quantum systems.

Explains free energy as a sum over connected diagrams and the semiclassical propagator in quantum field theory.

Introduces quantum perturbation theory and its systematic approach to solving perturbed quantum systems.

Delves into Moller-Plesset Perturbation Theory, discussing energy corrections and wavefunction expansion in quantum chemistry.

Covers time-dependent perturbation theory, focusing on Fermi's Golden Rule and spontaneous emission.

Covers Many-Body Perturbation Theory as a method to treat electron correlation effects.

Covers the basics of time-dependent perturbation theory in quantum mechanics.