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hep-th2000
A Non-perturbative Estimate of Vacuum Polarization in QED
Y. M. Cho, D. G. Pak
We present a new estimate of the fine structure constant and the -function of QED at an arbitrary scale. Using the non-perturbative but convergent series expression of the one l…
hep-ph2000
Reply to the Comment by U. Jentschura and E. Weniger
D. G. Pak
It is shown that the criticism (revised version) made in hep-th/0007108 (by Jentschura and Weniger) on hep-th/0006057 has no valid ground. Furthemore we emphasize that the concept…
hep-th2000
Dynamical Symmetry Breaking and Magnetic Confinement in QCD
Y. M. Cho, D. G. Pak
We present a gauge independent method to construct the effective action of QCD, and calculate the one loop effective action of QCD in an arbitrary constant background field…