Uma Introdução à Teoria de Campos

Abstract

Initially, a brief introduction to the study of Öeld theories in physics is presented, as a sophisticated theory that refers to the construction of the dynamics of a Öeld. For this, we use formulations proposed by analytical mechanics such as Lagrangian and Hamiltonian dynamics. All Öeld theories can be expressed by these formulations, obtaining a Lagrangian or a Hamiltonian of the Öeld and treating it as classical mechanics or quantum mechanics of a system with an inÖnite number of degrees of freedom we obtain the Classical Field Theories or Quantum Field Theories. As a Önal objective, we present a Quantum Field Mechanics, which is the Quantum Field Theory for the electron this objective was achieved thanks to Klein-Gordon and Dirac, as they found a way to unify Quantum Mechanics with the Theory of Relativity