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Localisation in worldline pair production and lightfront zero-modes

Anton Ilderton (Institutionen för teknisk fysik, Kondenserade materiens teori)
Journal of High Energy Physics (1029-8479). 9, p. Art. no. 166. (2014)
[Artikel, refereegranskad vetenskaplig]

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.

Nyckelord: Nonperturbative Effects, Solitons Monopoles and Instantons



Denna post skapades 2014-11-25. Senast ändrad 2015-04-29.
CPL Pubid: 206539

 

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Institutioner (Chalmers)

Institutionen för teknisk fysik, Kondenserade materiens teori (1900-2015)

Ämnesområden

Den kondenserade materiens fysik

Chalmers infrastruktur