A Non-perturbative Estimate of Vacuum Polarization in QED
High Energy Physics - Theory
2007-05-23 v3
Abstract
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 loop effective action of QED that has been available recently we make a non-perturbative estimate of the running coupling and the -function, and prove the renormalization group invariance of the effective action. The contrast between our result and the perturbative result is remarkable.
Cite
@article{arxiv.hep-th/0010073,
title = {A Non-perturbative Estimate of Vacuum Polarization in QED},
author = {Y. M. Cho and D. G. Pak},
journal= {arXiv preprint arXiv:hep-th/0010073},
year = {2007}
}
Comments
4 pages, 5 figures