ar X iv : h ep - t h / 05 12 15 2 v 1 1 4 D ec 2 00 5 Spectral function in QED

ar X iv : h ep - p h / 05 12 21 6 v 2 1 7 D ec 2 00 5 QUANTIZATION AND HIGH ENERGY UNITARITY IN ORBIFOLD THEORIES

ar X iv : h ep - p h / 05 12 21 6 v 1 1 6 D ec 2 00 5 QUANTIZATION AND HIGH ENERGY UNITARITY IN ORBIFOLD THEORIES

ar X iv : h ep - t h / 02 12 05 8 v 1 4 D ec 2 00 2 Dirac ’ s Magnetic Monopoles ( Again )

Dirac's quantization of magnetic monopole strength is derived without reference to a (singular, patched) vector potential.

ar X iv : h ep - t h / 05 12 13 4 v 1 1 3 D ec 2 00 5 A LORENTZ COVARIANT NONCOMMUTATIVE GEOMETRY

A noncommutative geometry that preserves lorentz covariance was introduced by Hartland Snyder in 1947. We show that this geometry has unusual properties under momentum translation, and derive for it a form of star product.

ar X iv : h ep - t h / 05 12 15 2 v 2 3 A pr 2 00 6 Spectral function in QED 3 Yuichi

Abstract We discuss the structure of the dressed fermion propagator in unquenched QED3 based on spectral function of photon.In this approximation infrared divergences that appeared in quenched case turns out to be soft.The dimension full coupling constant naturally appears as an infrared mass scale in this case.We find the reliable results for the effects of vacuum polarization for the dressed ...