Nobel Laureate discusses quantum theory, uncertainty, wave mechanics, work of Dirac, Schroedinger, Compton, Einstein, others. "An authoritative statement of Heisenberg's views on this aspect of the quantum theory." — Nature.

Comprehensive survey of quantum theory and its formalism demonstrates establishment of specific pairs of conjugate observables and the determination of their properties. Also relies on the Dirac equation and explains spin-statistics theorem. 2020 edition.

Published in 1934, this monograph was one of the first introductory accounts of the principles which form the physical basis of the Quantum Theory, considered as a branch of mathematics. The exposition is restricted to a discussion of general principles and does not attempt detailed application to the wide domain

A comprehensive account of molecular quantum electrodynamics from the perspectives of physics and theoretical chemistry. This book is an ideal reference for graduate students and researchers in chemical and molecular physics, quantum chemistry, and theoretical chemistry.

This monograph explains and analyzes the principles of a quantum-geometric framework for the unification of general relativity and quantum theory. By taking advantage of recent advances in areas like fibre and superfibre bundle theory, Krein spaces, gauge fields and groups, coherent states, etc., these principles can be consistently incorporated into