Unitary and Renormalizable Theory of Higher Derivative Gravity
High Energy Physics - Theory
2015-06-11 v1 General Relativity and Quantum Cosmology
Abstract
In 3+1 space-time dimensions, fourth order derivative gravity is perturbatively renormalizable. Here it is shown that it describes a unitary theory of gravitons (with/without an additional scalar) in a limited coupling parameter space which includes standard cosmology. The running of gravitational constant which includes contribution of graviton is computed. It is shown that generically Newton's constant vanishes at short distance in this perturbatively renormalizable and unitary theory.
Keywords
Cite
@article{arxiv.1210.0513,
title = {Unitary and Renormalizable Theory of Higher Derivative Gravity},
author = {Gaurav Narain and Ramesh Anishetty},
journal= {arXiv preprint arXiv:1210.0513},
year = {2015}
}
Comments
4 pages. To appear in JPCS-IOP. Proceedings of the conference COSGRAV12, held at Indian Statistical Institute, Kolkata