coulomb perturbation
1Perturbation theory (quantum mechanics) — In quantum mechanics, perturbation theory is a set of approximation schemes directly related to mathematical perturbation for describing a complicated quantum system in terms of a simpler one. The idea is to start with a simple system for which a …
2Photon — This article is about the elementary particle of light. For other uses, see Photon (disambiguation). Photon Photons emitted in a coherent beam from a laser Composition Elementary particle …
3Gauge fixing — Quantum field theory (Feynman diagram) …
4Electron liquid — The Electron Liquid is a model system used by physicists to theoretically study interactions among electrons. The uniform electron liquid is a well known model for simple metals like sodium or Aluminum. The ionic charges are assumed to be smudged …
5physical science, principles of — Introduction the procedures and concepts employed by those who study the inorganic world. physical science, like all the natural sciences, is concerned with describing and relating to one another those experiences of the surrounding… …
6Electromagnetism — Electricity · …
7Force — For other uses, see Force (disambiguation). See also: Forcing (disambiguation) Forces are also described as a push or pull on an object. They can be due to phenomena such as gravity, magnetism, or anything that might cause a mass to accelerate …
8PLASMAS — Le terme «plasma» a été introduit en physique en 1923 par les physiciens américains Irving Langmuir et Levi Tonks pour désigner, dans les tubes à décharge (cf. état GAZEUX), certaines régions équipotentielles contenant un gaz ionisé… …
9Metamaterial cloaking — Electromagnetism Electricity · …
10Ecrantage du champ electrique — Écrantage du champ électrique L écrantage du champ électrique consiste en l atténuation du champ électrique en raison de la présence de porteurs de charge électrique mobiles au sein d un matériau. Il s agit d un comportement essentiel des fluides …
