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Journal of High Energy Physics

, 2014:166

First Online: 29 September 2014Received: 11 June 2014Revised: 25 July 2014Accepted: 28 August 2014 Abstract

The nonperturbative probability of pair production in electric fields depending on lightfront time is given exactly by the locally constant approximation. We explain this by showing that the worldline path integral defining the effective action contains a constraint, which localises contributing paths on hypersurfaces of constant lightfront time. These paths are lightfront zero-modes and there can be no pair production without them; the effective action vanishes if they are projected out.

KeywordsNonperturbative Effects Solitons Monopoles and Instantons ArXiv ePrint: 1406.1513

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Autor: Anton Ilderton

Fuente: https://link.springer.com/

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