On the Calculation of QED Amplitudes in a Constant Field

Details On the Calculation of QED Amplitudes in a Constant Field On the Calculation of QED Amplitudes in a Constant Field

1998-07-08

arxiv.org/abs/hep-ph/9807288v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, standard latex, no figures, talk given at Workshop on Frontier Tests of Quantum Electrodynamics and Physics of the Va

Scientific paper

It is explained how first-quantized worldline path integrals can be used as
an efficient alternative to Feynman diagrams in the calculation of QED
amplitudes and effective actions. The examples include the one-loop photon
splitting amplitude, the two-loop Euler-Heisenberg Lagrangian, and the one-loop
axial vacuum polarization tensor in a general constant electromagnetic field.

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