infrared divergence

infrared divergence
Макаров: инфракрасная расходимость

Универсальный англо-русский словарь. . 2011.

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  • Infrared divergence — In physics, an infrared divergence is a situation in which an integral, for example a Feynman diagram, diverges because of contributions of objects with very small energy approaching zero, or, equivalently, because of physical phenomena at very… …   Wikipedia

  • Divergence (disambiguation) — Divergence can refer to: In mathematics: Divergence, a function that associates a scalar with every point of a vector field Divergence (computer science), a computation which does not terminate (or terminates in an exceptional state) Divergence… …   Wikipedia

  • Ultraviolet divergence — In physics, an ultraviolet divergence is a situation in which an integral, for example a Feynman diagram, diverges because of contributions of objects with very high energy (approaching infinity), or, equivalently, because of physical phenomena… …   Wikipedia

  • Beam divergence — The beam divergence of an electromagnetic beam is an angular measure of the increase in beam diameter with distance from the optical aperture or antenna aperture from which the electromagnetic beam emerges. The term is relevant only in the far… …   Wikipedia

  • Renormalization — Quantum field theory (Feynman diagram) …   Wikipedia

  • QCD vacuum — The QCD vacuum is the vacuum state of quantum chromodynamics (QCD). It is an example of a non perturbative vacuum state, characterized by many non vanishing condensates such as the gluon condensate or the quark condensate. These condensates… …   Wikipedia

  • List of mathematical topics in quantum theory — This is a list of mathematical topics in quantum theory, by Wikipedia page. See also list of functional analysis topics, list of Lie group topics, list of quantum mechanical systems with analytical solutions. Contents 1 Mathematical formulation… …   Wikipedia

  • Functional integration — You may also be looking for functional integration (neurobiology) or functional integration (sociology). Functional integration is a collection of results in mathematics and physics where the domain of an integral is no longer a region of space,… …   Wikipedia

  • BPST instanton — The BPST instanton is the instanton with winding number 1 found by Belavin, Polyakov, Schwartz and Tyupkin. It is a classical solution to the equations of motion in Euclidean space time (i.e. after Wick rotation), meaning it describes a… …   Wikipedia

  • One-loop Feynman diagram — In physics, a one loop Feynman diagram is a connected Feynman diagram with only one cycle (unicyclic). Such a diagram can be obtained from a connected tree diagram by taking two external lines of the same type and joining them together into an… …   Wikipedia

  • Soft-collinear effective theory — In quantum field theory, soft collinear effective theory (or SCET) is a theoretical framework for doing calculations in quantum chromodynamics (QCD) that involve interacting particles carrying widely different energies.The motivation for… …   Wikipedia


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