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Stochastic Electrodynamics
Stochastic electrodynamics (SED) is a variant of classical electrodynamics (CED) of theoretical physics. SED consists of a set of controversial theories that posit the existence of a classical Lorentz invariant radiation field having statistical properties similar to that of the electromagnetic zero-point field (ZPF) of quantum electrodynamics (QED). Classical background field The background field is introduced as a Lorentz force in the (classical) Abraham–Lorentz–Dirac equation (see: Abraham–Lorentz–Dirac force), where the classical statistics of the electric and magnetic fields and quadratic combinations thereof are chosen to match the vacuum expectation values of the equivalent operators in QED. The field is generally represented as a discrete sum of Fourier components each with amplitude and phase that are independent classical random variables, distributed so that the statistics of the fields are isotropic and unchanged under boosts. This prescription is such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Classical Electrodynamics
Classical electromagnetism or classical electrodynamics is a branch of theoretical physics that studies the interactions between electric charges and currents using an extension of the classical Newtonian model; It is, therefore, a classical field theory. The theory provides a description of electromagnetic phenomena whenever the relevant length scales and field strengths are large enough that quantum mechanical effects are negligible. For small distances and low field strengths, such interactions are better described by quantum electrodynamics, which is a quantum field theory. Fundamental physical aspects of classical electrodynamics are presented in many texts, such as those by Feynman, Leighton and Sands, Griffiths, Panofsky and Phillips, and Jackson. History The physical phenomena that electromagnetism describes have been studied as separate fields since antiquity. For example, there were many advances in the field of optics centuries before light was understood to be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luis De La Peña
Luis Fernando de la Peña-Auerbach known as Luis de la Peña is a Mexican physicist, born in Mexico City in 1931. He is a researcher of the Institute of Physics and professor of the Faculty of Sciences of the National Autonomous University of Mexico (UNAM) and is a member of the Science Advisory Council of the Presidency of Mexico. He graduated from ESIME of the National Polytechnic Institute with a degree in mechanical-electrical engineering and began his professional activity as a designer of audio systems. From 1954 was professor of the ESIME and from 1958 definitively joined UNAM. He completed his PhD in 1964 under the direction of Arseny Sokolov at the Moscow State University in the Soviet Union. He is known most for his contributions towards the field of stochastic electrodynamics (SED). In 2002 he was awarded the National Prize for Arts and Sciences The National Prize for Arts and Sciences ( es, Premio Nacional de Ciencias y Artes) is awarded annually by the Government ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |