On the field measurements and the state definition in quantum electrodynamics

With L. Rosenfeld, Niels Henrik David Bohr, L. Rosenfeld

Robert S. Cohen, John J. Stachel

Lawrence J. Landau

The relation between quantum electrodynamics and (classical) stochastic electrodynamics is elucidated by means of a general construction which associates with every Gaussian quantum field (for example, vacuum-free fields or coherent states at zero or nonzero temperature) a classical random field, which in the case of quantum electrodynamics yields stochastic electrodynamics. The associated classical and quantum theories yield the same results for all nondisturbing (causally separated) field measurements. This is an additional classical characteristic of coherent quantum states which implies that Bell's inequality is satisfied by quantum field measurements. Furthermore, stochastic electrodynamics is identified as the Wigner distribution of quantum electrodynamics. We point out that in these Gaussian states stochastic electrodynamics is more suitable as a classical model of the quantum field than is the Euclidean field, which results from applying Nelson's stochastic mechanics to each field mode.

Dmitry N. Lyubimov, Kirill N. Dolgopolov, L.S. Pinchuk

A concrete realization of a tribosystem, the ‘manifested tribosystem’, is observed in terms of quantum theory, in full accordance with the meaning given to fundamental concept by P. Dirac. A manifested tribosystem is a result of the information field perturbation is properly tribosystem being in the initial nonlocal quantum state. Under the quantum approach, a tribosystem is born by perturbations of the primary information field at the measurement, like splashes from a liquid surface when various items fall there and like those splashes break up into separate drops, individual visible tribosystems arise. The use of formalism and the views of perturbation theory as the basis for quantum system dynamics are based on the definition of motion as energy exchange of a physical system with the environment or neighboring physical systems. The physical consideration of the impact of physical fields on the kinetics of tribophysical processes, based on applying continuum electrodynamics, is a complicated task from the mathematical point of view.

Donald Bowen

Jean G. Valatin