We apply worldline methods to the study of vacuum polarisation effects in
plane wave backgrounds, in both scalar and spinor QED. We calculate
helicity-flip probabilities to one loop order and treated exactly in the
background field, and provide a toolkit of methods for use in investigations of
higher-order processes. We also discuss the connections between the worldline,
S-matrix, and lightfront approaches to vacuum polarisation effects.Comment: 11 pages, 1 figur

A. M. Polyakov

Anton Ilderton

G. Lepage

Greger Torgrimsson

N. B. Narozhnyi

V. N. Baier

arXiv

We apply worldline methods to the study of vacuum polarization effects in plane wave backgrounds, in both scalar and spinor QED. We calculate helicity-flip probabilities to one loop order and treated exactly in the background field, and provide a toolkit of methods for use in investigations of higher-order processes. We also discuss the connections between the worldline, S-matrix, and lightfront approaches to vacuum polarization effects

Ilderton, Antony,

Torgrimsson, Greger,

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Worldline approach to helicity flip in plane waves [Elektronisk resurs]

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Worldline approach to helicity flip in plane waves

Ilderton, A

Torgrimsson, G

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Worldline approach to helicity flip in plane waves

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