Concept
Lagrangian (field theory)
Related lectures (60)
Quantum Field Theory: Heisenberg Representation and Noether Charges
Explores the Heisenberg representation of a free massive real scalar field and the time independence of Noether charges.
Symmetries in Mechanics and Wave Equations
Explores symmetries in Newtonian mechanics and wave equations, highlighting their significance in understanding physical laws.
Principle of Least Action
Covers the principle of least action, Euler-Lagrange equations, Lagrange multipliers, and variational calculus.
Discrete Symmetries Introduction
Introduces the concept of discrete symmetries in Quantum Field Theory and their impact on particles and anti-particles.
Symmetry and Conservation Laws
Explores symmetry, Noether's theorem, and conservation laws in physics, emphasizing the role of time and the Hamiltonian.
The Higgs Mechanism: Formal Aspects
Covers the formal aspects of the Higgs mechanism, explaining mass terms for scalar and gauge bosons through symmetry breaking.
Quantum Mechanics: Path Integral Representation
Covers the path integral representation in quantum mechanics and the dynamics of systems described by Lagrangian.
Field Theory: Action Principles
Discusses the application of action principles in classical field theory, focusing on Lagrange and Hamiltonian formulations.
Optimal Control Theory
Introduces optimal control theory, covering models, discretization, measurements, Lagrangian, KKT conditions, and invertibility.
Radiation-reaction Force: Lagrangian Formulation
Covers the radiation-reaction force, conservation of momentum, and correct force expressions.