Quantum Theory and Five - Dimensional Relativity Theory: The paper of Oscar Klein

Quantum Theory and Five - Dimensional Relativity Theory: The paper of Oscar Klein

This book is a sequel to the first book “On the Unification Problem in Physics – the paper of Theodor Kaluza”. It is a natural continuation of our journey into the 5-dimensional theory of gravity and electromagnetism but in its quantum form. Kaluza based his work on a fully developed general theory of relativity. The work was a purely classical extension of the general theory of relativity to five dimensions. No quantum interpretation was considered. He left the basic principles of general relativity theory untouched and only added an extra dimension. With this incredible addition, Kaluza has discovered that it can reproduce both Einstein's equations of gravity and Maxwell's equations of electromagnetism with one set of relations. In 1926, Oskar Klein gave a quantum-mechanical interpretation to this theory following the quantum mechanics of that time. This book aims to present Klein’s respective paper “Quantum Theory and Five-Dimensional Relativity Theory” and to provide complete derivations of all equations.