Mediaspace scheduled maintenance: Aug 25, 2026 07:00 - 12:00 AM. During this time, videos will be temporarily unavailable. Check status updates.

Concept

Perturbation theory

Related lectures (31)

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.

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

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

Covers the theory and applications of Borel resummation in physics.

Explores non-perturbative effects in quantum physics, focusing on instantons in the double well potential.

Explores the Euclidean path integral formalism, with a focus on the harmonic oscillator.

Explores scattering theory, S-matrix, T-product, perturbation theory, and Schrödinger equation solutions.

Explores quantum quench, analyzing system evolution post-Hamiltonian change and the impact on behavior over time.