Which physicist is credited with the 'Quantum Theory'?
Robert Graham (physicist) gases as well as quantum chaos (according to the Laudatio of the Max Planck medal 2009) and his contributions to quantum aspects of cosmology and gravitation. Robert Graham (physicist) Robert Graham (born 11 February 1942, Berlin) is a German theoretical physicist. Graham attended the Karls-Gymnasium in Stuttgart and studied at the University of Stuttgart, where in 1967 he earned under Hermann Haken his physics Diplom (quantum fluctuations of the optical parametric oscillator) and in 1969 his PhD ("Lichtausbreitung in laseraktiven fluktuierenden Medien", "Light Propagation in Laser-active Fluctuating Media"). Continuing this work, he applied the theory of cooperative systems publicized by
Introduction to quantum mechanics quantum mechanics." The question of whether entanglement is a real condition is still in dispute. The [[Bell inequalities]] are the most powerful challenge to Einstein's claims. The idea of quantum field theory began in the late 1920s with British physicist [[Paul Dirac]], when he attempted to [[quantization (physics)|quantise]] the [[electromagnetic field]] – a procedure for constructing a quantum theory starting from a classical theory. A "field" in physics is "a region or space in which a given effect (such as [[magnetism]]) exists." Other effects that manifest themselves as fields are [[gravitation]] and [[static electricity]]. In 2008, physicist [[Richard Hammond (physicist)|Richard