Nonperturbative Newtonian coupling in Einstein gravity with Dirac fields
高能物理 - 理论
2007-05-23 v1
摘要
We investigate the exact renormalization group (RG) in Einstein gravity coupled to N-component spinor field, working in the effective average action formalism and background field method. The truncated evolution equation is obtained for the Newtonian and cosmological constants. We have shown that screening or antiscreening behaviour of the gravitational coupling depends crucially on the number of spinor components
引用
@article{arxiv.hep-th/0501239,
title = {Nonperturbative Newtonian coupling in Einstein gravity with Dirac fields},
author = {L. N. Granda},
journal= {arXiv preprint arXiv:hep-th/0501239},
year = {2007}
}
备注
7 pages, LaTeX, minor typos corrected