Chern-Simons modified gravity and closed time-like curves
High Energy Physics - Theory
2016-08-23 v2 General Relativity and Quantum Cosmology
Abstract
We verify the consistency of the G\"odel-type solutions within the four-dimensional Chern-Simons modified gravity with the non-dynamical Chern-Simons coefficient, for different forms of matter including dust, fluid, scalar field and electromagnetic field, and the related causality issues. Unlike the general relativity, the vacuum solution turns out to be possible in our theory. Another essentially new result of our theory having no analogue in the general relativity consists in the existence of the hyperbolic causal solutions for the physically well-motivated matter.
Cite
@article{arxiv.1606.00743,
title = {Chern-Simons modified gravity and closed time-like curves},
author = {P. J. Porfirio and J. B. Fonseca-Neto and J. R. Nascimento and A. Yu. Petrov and J. Ricardo and A. F. Santos},
journal= {arXiv preprint arXiv:1606.00743},
year = {2016}
}
Comments
16 pages, version accepted to PRD