Infrared problem and spatially local observables in electrodynamics

Andrzej Herdegen

doi:10.1007/s00023-008-0359-7

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arXiv · 0710.0500

Infrared problem and spatially local observables in electrodynamics

Andrzej Herdegen

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Abstract

An algebra previously proposed as an asymptotic field structure in electrodynamics is considered in respect of localization properties of fields. Fields are 'spatially local' -- localized in regions resulting as unions of two intersecting (solid) lightcones: a future- and a past-lightcone. This localization remains in concord with the usual idealizations connected with the scattering theory. Fields thus localized naturally include infrared characteristics normally placed at spacelike infinity and form a structure respecting Gauss law. When applied to the description of the radiation of an external classical current the model is free of 'infrared catastrophe'.

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Andrzej Herdegen. 2007-11-14. Infrared problem and spatially local observables in electrodynamics. https://doi.org/10.1007/s00023-008-0359-7

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