Analogue tachyon in Jeans Cloud
General Relativity and Quantum Cosmology
2017-07-12 v1 High Energy Astrophysical Phenomena
Abstract
We study the linear perturbations in a stable Jeans cloud, i.e; the dimension of the cloud is less than the Jeans length. We find that the linear perturbation of density in such a system obeys a wave equation in acoustic analogue of Minkowski space-time which is similar to Klein-Gordon equation for tachyon field in Minkowski space-time, i.e; Klein-Gordon equation with negative mass-squared term in a flat space time background. We further find the analogy with tachyon field for linear perturbation of density by studying linear perturbations in a stable cloud made of Bose-Einstein condensate as dark matter.
Cite
@article{arxiv.1707.03284,
title = {Analogue tachyon in Jeans Cloud},
author = {Satadal Datta},
journal= {arXiv preprint arXiv:1707.03284},
year = {2017}
}