Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Infrared_divergence> ?p ?o. }
Showing items 1 to 15 of
15
with 100 items per page.
- Infrared_divergence abstract "In physics, an infrared divergence or infrared catastrophe 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 long distances.The infrared (IR) divergence only appears in theories with massless particles (such as photons). They represent a legitimate effect that a complete theory often implies. One way to deal with it is to impose an infrared cutoff and take the limit as the cutoff approaches zero and/or refine the question. Another way is to assign the massless particle a fictitious mass, and then take the limit as the fictitious mass vanishes.The divergence is usually in terms of particle number and not empirically troubling, in that all measurable quantities remain finite. (Unlike in the case of the UV catastrophe where the energies involved diverge.)".
- Infrared_divergence wikiPageID "701481".
- Infrared_divergence wikiPageRevisionID "556836349".
- Infrared_divergence hasPhotoCollection Infrared_divergence.
- Infrared_divergence subject Category:Quantum_field_theory.
- Infrared_divergence subject Category:Renormalization_group.
- Infrared_divergence comment "In physics, an infrared divergence or infrared catastrophe 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 long distances.The infrared (IR) divergence only appears in theories with massless particles (such as photons). They represent a legitimate effect that a complete theory often implies.".
- Infrared_divergence label "Divergence infrarouge".
- Infrared_divergence label "Infrared divergence".
- Infrared_divergence sameAs Divergence_infrarouge.
- Infrared_divergence sameAs m.033zsg.
- Infrared_divergence sameAs Q3032223.
- Infrared_divergence sameAs Q3032223.
- Infrared_divergence wasDerivedFrom Infrared_divergence?oldid=556836349.
- Infrared_divergence isPrimaryTopicOf Infrared_divergence.