A Vacuum Solution with Torsion in Higher-Derivative Gravity
High Energy Physics - Theory
2012-09-04 v2
Abstract
In this paper, we provide a vacuum solution with torsion in quadratic Riemann-curvature gravity. Physically, the solution means that vacuum can have a nonzero vacuum field with large torsion. We show that the Einstein-Hilbert action can be derived if we expand the quadratic curvature of the Lagrangian in a torsion-free Riemannian space-time around a nonzero vacuum field. We also show that the cosmological constant caused by a nonzero vacuum field is equal to zero.
Keywords
Cite
@article{arxiv.1207.0200,
title = {A Vacuum Solution with Torsion in Higher-Derivative Gravity},
author = {Kouzou Nishida},
journal= {arXiv preprint arXiv:1207.0200},
year = {2012}
}
Comments
This paper has been withdrawn by the author