Emergent Gravity from an Augmented Variational Principle
General Relativity and Quantum Cosmology
2016-08-02 v3 High Energy Physics - Theory
Abstract
A direct and non-trivial link between Padmanabhan's entropy used in emergent gravity and standard GR action is established. To do that, Augmented Variational Principles (AVP) will be used. We shall discuss how this link accounts for the details of the variation of Padmanabhan's action based on gravitational entropy. It will also clarify the role of the background metric and its non-dynamical role.
Cite
@article{arxiv.1604.08067,
title = {Emergent Gravity from an Augmented Variational Principle},
author = {Matteo Tuveri and Lorenzo Fatibene and Marco Ferraris},
journal= {arXiv preprint arXiv:1604.08067},
year = {2016}
}
Comments
19 pages, references added. Some typos and equations (35-37) corrected