electromagnetic quantum

electromagnetic quantum
электромагнитный квант

English-russian dictionary of physics. 2013.

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  • Quantum electrodynamics — (QED) is a relativistic quantum field theory of electrodynamics. QED was developed by a number of physicists, beginning in the late 1920s. It basically describes how light and matter interact. More specifically it deals with the interactions… …   Wikipedia

  • quantum mechanics — quantum mechanical, adj. Physics. a theory of the mechanics of atoms, molecules, and other physical systems that are subject to the uncertainty principle. Abbr.: QM Cf. nonrelativistic quantum mechanics, relativistic quantum mechanics. [1920 25]… …   Universalium

  • Quantum cascade laser — Quantum cascade lasers (QCLs) are semiconductor lasers that emit in the mid to far infrared portion of the electromagnetic spectrum and were first demonstrated by Jerome Faist, Federico Capasso, Deborah Sivco, Carlo Sirtori, Albert Hutchinson,… …   Wikipedia

  • Electromagnetic radiation and health — Electromagnetic radiation can be classified into ionizing radiation and non ionizing radiation, based on whether it is capable of ionizing atoms and breaking chemical bonds. Ultraviolet and higher frequencies, such as X rays or gamma rays are… …   Wikipedia

  • Quantum mind — theories are based on the premise that quantum mechanics is necessary to fully understand the mind and brain, particularly concerning an explanation of consciousness. This approach is considered a minority opinion in science, although it does… …   Wikipedia

  • Quantum optics — is a field of research in physics, dealing with the application of quantum mechanics to phenomena involving light and its interactions with matter. History of quantum optics Light is made up of particles called photons and hence inherently is… …   Wikipedia

  • Quantum noise — is uncertainty of some physical quantity due to its quantum origin.In the case of number of particles (photons or electrons), the quantum noise is also called shot noise. Most optical communications use amplitude modulation. In this case, the… …   Wikipedia

  • Quantum imaging — [ [http://www.iop.org/EJ/abstract/1464 4266/4/3/372 Quantum Imaging] , L A Lugiato et al 2002 J. Opt. B: Quantum Semiclass. Opt. 4 S176 S183.] , [ [http://www.informaworld.com/openurl?genre=issue issn=0950 0340 volume=53 issue=5 Special Issue on… …   Wikipedia

  • Quantum efficiency — (QE) is a quantity defined for a photosensitive device such as photographic film or a charge coupled device (CCD) as the percentage of photons hitting the photoreactive surface that will produce an electron–hole pair [… …   Wikipedia

  • quantum electrodynamics (QED) — Quantum theory of the interactions of charged particles with the electromagnetic field. It describes the interactions of light with matter as well as those of charged particles with each other. Its foundations were laid by P. A. M. Dirac when he… …   Universalium

  • quantum electrodynamics — quantum theory of electromagnetic radiation and its interaction with atom particles and electrically charged atoms (Quantum Mechanics) …   English contemporary dictionary


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