Electromagnetic duality in general relativity
广义相对论与量子宇宙学
2015-06-25 v1
摘要
By resolving the Riemann curvature relative to a unit timelike vector into electric and magnetic parts, we consider duality relations analogous to the electromagnetic theory. It turns out that the duality symmetry of the Einstein action implies the Einstein vacuum equation without the cosmological term. The vacuum equation is invariant under interchange of active and passive electric parts giving rise to the same vacuum solutions but the gravitational constant changes sign. Further by modifying the equation it is possible to construct interesting dual solutions to vacuum as well as to flat spacetimes.
引用
@article{arxiv.gr-qc/9909067,
title = {Electromagnetic duality in general relativity},
author = {Naresh Dadhich},
journal= {arXiv preprint arXiv:gr-qc/9909067},
year = {2015}
}
备注
18 pages, LaTEX version