Strong Field, Noncommutative QED

Details Strong Field, Noncommutative QED Strong Field, Noncommutative QED

2010-03-22

arxiv.org/abs/1003.4184v2

SIGMA 6 (2010), 041, 27 pages

Physics

High Energy Physics

High Energy Physics - Theory

Discussion of UV/IR mixing extended, references added

Scientific paper

10.3842/SIGMA.2010.041

We review the effects of strong background fields in noncommutative QED. Beginning with the noncommutative Maxwell and Dirac equations, we describe how combined noncommutative and strong field effects modify the propagation of fermions and photons. We extend these studies beyond the case of constant backgrounds by giving a new and revealing interpretation of the photon dispersion relation. Considering scattering in background fields, we then show that the noncommutative photon is primarily responsible for generating deviations from strong field QED results. Finally, we propose a new method for constructing gauge invariant variables in noncommutative QED, and use it to analyse the physics of our null background fields.

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