Run-away solutions in relativistic spin 1/2 quantum electrodynamics

Details Run-away solutions in relativistic spin 1/2 quantum electrodynamics Run-away solutions in relativistic spin 1/2 quantum electrodynamics

1997-02-20

arxiv.org/abs/hep-th/9702151v2

Physics

High Energy Physics

High Energy Physics - Theory

3 minor changes; 17 pgs, epsf & aps styles,1 eps & 2 embedded ps figs

Scientific paper

10.1006/aphy.1998.5801

The existence of run-away solutions in classical and non-relativistic quantum electrodynamics is reviewed. It is shown that the less singular high energy behavior of relativistic spin 1/2 quantum electrodynamics precludes an analogous behavior in that theory. However, a Landau-like anomalous pole in the photon propagation function or in the electron-massive photon foward scattering amplitude would generate a new run-away, characterized by an energy scale omega ~ m_e exp (1/alpha). This contrasts with the energy scale omega ~ (m_e/alpha) associated with the classical and non-relativistic quantum run-aways.

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