Lecture
This lecture covers an alternative derivation of Lorentz transformation, focusing on the interpretation and properties of Lorentz transformations. It explains the product of Lorentz transformations, showing how it is indeed a special rotation in 3D space. The lecture also discusses the creation of particles through momentum and polarization, defining the Poincaré group and irreducible representations. It concludes by exploring the properties of Lorentz transformations and their role in particle physics.