File:Vacuum polarization.svg

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Original file ‎(SVG file, nominally 144 × 75 pixels, file size: 5 KB)

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Description
English: One-loop vacuum polarization diagram. This is the one loop contribution to the photon propagator Π due to vacuum polarization in quantum electrodynamics. It contributes to a wave function renormalization for the photon, leading to a charge screening. It has a logarithmic divergence. Similar one-loop diagrams can be considered for other gauge bosons, such as W, Z and the gluons.
Français : Diagramme à une boucle de polarisation du vide, ou d'écrantage des charges en QED. Il contribue à la renormalisation de la fonction d'onde du photon. Il possède une divergence ultraviolette logarithmique.
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Source en:Image:Vacuum polarization.png
Author User:Stannered
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(Reusing this file)		 PD
Other versions en:Image:Vacuum polarization.png


This work is ineligible for copyright and therefore in the public domain because it consists entirely of information that is common property and contains no original authorship.

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7 March 2007

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current19:16, 7 March 2007Thumbnail for version as of 19:16, 7 March 2007144 × 75 (5 KB)Stannered{{Information |Description=One-loop vacuum polarization diagram. This is the one loop contribution to the photon propagator Π due to vacuum polarization in quantum electrodynamics. It contributes to a wave function renorma

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