ar X iv : h ep - t h / 05 10 04 5 v 1 5 O ct 2 00 5 Vacuum Polarization Effects in the Lorentz and PCT Violating

ar X iv : h ep - p h / 04 05 11 9 v 1 1 3 M ay 2 00 4 The Lorentz and CPT violating effects on the charged

ar X iv : h ep - t h / 98 12 13 2 v 1 1 5 D ec 1 99 8 Lorentz and PCT Violating Chern - Simons Term in the Derivative Expansion of QED ∗

We calculate by the method of dimensional regularization and derivative expansion the one-loop effective action for a Dirac fermion with a Lorentz-violating and PCT-odd kinetic term in the background of a gauge field. We show that this term induces a Chern-Simons modification to Maxwell theory. Some related issues are also discussed.

ar X iv : h ep - t h / 05 10 03 6 v 5 1 1 O ct 2 00 5 Mass singularity and confinement in QED 3 Yuichi

To search the infrared behaviour of the propagator in three dimensional QED ordinary perturbative method is not appropreate because of its bad infrared divergences[4].Assuming spectral representation and LSZ reduction formula,we evaluate the infrared behaviour or the mass singularity of the fermion propagator in three dimensional QED as in four dimension.In quenched case with bare photon mass w...

ar X iv : h ep - t h / 05 10 03 6 v 1 5 O ct 2 00 5 Mass singularity and confinement in QED 3

To search the infrared behaviour of the propagator in three dimensional QED ordinary perturbative method is not appropreate because of its bad infrared divergences[4].Assuming spectral representation and LSZ reduction formula,we evaluate the infrared behaviour or the mass singularity of the fermion propagator in three dimensional QED as in four dimension.In quenched case with bare photon mass w...

ar X iv : h ep - p h / 05 05 14 5 v 2 2 1 M ay 2 00 5 Lorentz violating electrodynamics

Abstract. After summarizing the most interesting results in the calculation of synchrotron radiation in the Myers-Pospelov effective model for Lorentz invariance violating (LIV) electrodynamics, we present a general unified way of describing the radiation regime of LIV electrodynamics which include the following three different models : Gambini-Pullin, Ellis et al. and Myers-Pospelov. Such unif...