Cosmic string in gravity's rainbow
General Relativity and Quantum Cosmology
2017-08-03 v3 High Energy Physics - Theory
Abstract
In this paper, we study the various cylindrical solutions (cosmic strings) in gravity's rainbow scenario. In particular, we calculate the gravitational field equations corresponding to energy-dependent background. Further, we discuss the possible Kasner, quasi-Kasner and non-Kasner exact solutions of the field equations. In this framework, we find that quasi-Kasner solutions can not be realized in gravity's rainbow. Assuming only time-dependent metric functions, we also analyse the time-dependent vacuum cosmic strings in gravity's rainbow, which are completely different than the other GR solutions.
Keywords
Cite
@article{arxiv.1703.00222,
title = {Cosmic string in gravity's rainbow},
author = {Davood Momeni and Sudhaker Upadhyay and Yerlan Myrzakulov and Ratbay Myrzakulov},
journal= {arXiv preprint arXiv:1703.00222},
year = {2017}
}
Comments
accepted in "Astrophys Space Sci"