Perturbation theory

Related lectures (32)

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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.