FISI 4430 Electrodinámica-Inglés
The course will begin with a revision of ideas from electrodynamics involving potentials and fields. This involves the consideration of the scalar and vector potentials in electrodynamics, gauge transformations, conservation laws, etc. After recollecting the above which has been seen to some extent in earlier courses, the course goes over to relativistic electrodynamics. Here we shall start with special relativity and look into the covariant formulation of electrodynamics. In the last part of the course we will study retarded potentials and topics related to the radiation of moving charges and radiation in collisions.
PLANNED TOPICS
Introduction: From statics to dynamics. Maxwell’s equations in integral and differential form, Static Potentials - Laplace and Poisson’s equations, Green’s function method, Dirichlet and Neumann boundary conditions, Potentials in Electrodynamics, Gauge transformations, Energy in electric and magnetic fields, Poynting’s theorem, conservations laws, electric and magnetic fields in matter.
Relativistic Electrodynamics. Lorentz transformations and relativistic kinematics, Covariant formulation of electrodynamics, antisymmetric field strength tensor, Lagrangian and Hamiltonian for a relativistic charged particle in external electromagnetic fields, motion of charged particles in electric and magnetic fields, Lagrangian description of electromagnetic fields, action function of the electromagnetic field, continuity equation in the 4-dimensional form, stress tensors
Fields of moving charges and topics in radiation. Retarded potentials and fields, Liénard Wiechert potentials and fields for a point charge, electric and magnetic dipole radiation, Power radiated by an accelerated charge: Larmor’s formula, angular distribution of radiation emitted by an accelerated charge, radiation emitted during collisions, Bremsstrahlung in collisions and decay processes
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