Essential nature of Newton's constant in unimodular gravity
High Energy Physics - Theory
2016-05-10 v1 General Relativity and Quantum Cosmology
Abstract
We point out that in unimodular gravity Newton's constant is an essential coupling, i.e. it is independent of field redefinitions. We illustrate the consequences of this fact by a calculation in a standard simple approximation, showing that in this case the renormalization group flow of Newton's constant is gauge and parametrization independent.
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Cite
@article{arxiv.1511.06560,
title = {Essential nature of Newton's constant in unimodular gravity},
author = {Dario Benedetti},
journal= {arXiv preprint arXiv:1511.06560},
year = {2016}
}
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15 pages