Tachyon motion in a black hole gravitational field
Abstract
The motion of superluminal particles in the gravitational field of a non-rotating black hole is analyzed. The relativistic Hamilton-Jacobi equation is solved for particles with imaginary rest mass. It is shown that there are no stable circular orbits and generally no finite motions for tachyons in the Schwarzschild metric and that all unstable circular tachyon orbits lie in a region extending from the gravitational radius to 1.5 times that radius. The particles with speeds exceeding the speed of light are noticed to be able to escape from the space limited by the gravitational radius. The results also indicate that low-energy tachyons near a black hole may acquire higher energies and that this in turn may lead to observable effects.
Keywords
Cite
@article{arxiv.1301.5428,
title = {Tachyon motion in a black hole gravitational field},
author = {V. M. Lipunov},
journal= {arXiv preprint arXiv:1301.5428},
year = {2013}
}
Comments
This English translation features the work that was published 35 years ago and was one of the first investigations of tachyons in the general relativity. As well as giving a solution to a specific problem, the paper put forward several ideas: birth of tachyons in the pre-Planck era, shock type of gravitational waves emitted by tachyons, existence of relic tachyons. 6 pages, 2 figures