Classical Electrodynamics

Also found in: Wikipedia.

Electrodynamics, Classical


the classical (nonquantum) theory of the behavior of electromagnetic fields, which effects the interaction between electric charges. The fundamental laws of classical electrodynamics are formulated in Maxwell’s equations. The equations make it possible to determine the values of the basic characteristics of an electromagnetic field—the electric field strength E and magnetic flux density B—in a vacuum and in macroscopic bodies as a function of the distribution of electric charges and currents in space.

In classical electrodynamics the microscopic electromagnetic field generated by individual charged particles is defined by the Lorentz-Maxwell equations, which constitute the foundation of the classical statistical theory of electromagnetic processes in macroscopic bodies. The averaging of the Lorentz-Maxwell equations leads to Maxwell’s equations.

The laws of classical electrodynamics are inapplicable at high frequencies (at short electromagnetic wavelengths), that is, for processes that occur in small space-time intervals. In such cases the laws of quantum electrodynamics are valid.


References in periodicals archive ?
This scientific success has been possible due to two factors: the high precision of modern nanofabrication and characterization techniques, and the extraordinary predictive value of classical electrodynamics.
Electronic engineers and physicists review the current state-of-the-art in formulating and implementing computational models of optical interactions with nanoscale material structures, using the finite-difference time-domain (FDTD) technique to solve Maxwell's equations of classical electrodynamics.
They argue that classical electrodynamics shows that no net force acts on the neutron.
However, classical electrodynamics is invalid for [eta] < 0.
Examples are mainly drawn from classical mechanics, classical field theory, classical electrodynamics, quantum mechanics, quantum statistical mechanics, and quantum field theory.
Jackson, Classical Electrodynamics, John Wiley, New York and London, (1962) p.
According to classical electrodynamics, the electrons should radiate energy continually, and as they do so, their orbits should gradually collapse.
Relativistic classical mechanics and classical electrodynamics describe the motion.
From classical electrodynamics applied to our standing wave model we were able to calculate the energy contributions of the electromagnetic field to the self-energy of an electron in the whole space.
Axiomatic deduction of equations of motion in Classical Electrodynamics.
2] is also known in classical electrodynamics, but in the present situation it appears on the basis of new principles and with a different signification.