An Introduction to Relativistic Quantum Mechanics. I. From Relativity to Dirac Equation
arXiv:0708.0052
Abstract
By using the general concepts of special relativity and the requirements of quantum mechanics, Dirac equation is derived and studied. Only elementary knowledge of spin and rotations in quantum mechanics and standard handlings of linear algebra are employed for the development of the present work.
arXiv comment53 pages. Didactical work. Revised conceptual argument about speed of light in section 2.1. Results unchanged