Intertial Frame Dragging in an Acoustic Analogue spacetime
Abstract
We report an incipient exploration of the Lense-Thirring precession effect in a rotating \textit{acoustic analogue black hole} spacetime. An exact formula is deduced for the precession frequency of a gyroscope due to inertial frame dragging, close to the ergosphere of a `Draining Bathtub' acoustic spacetime which has been studied extensively for acoustic Hawking radiation of phonons and also for `superresonance'. The formula is verified by embedding the two dimensional spatial (acoustic) geometry into a three dimensional one where the similarity with standard Lense-Thirring precession results within a strong gravity framework is well known. Prospects of experimental detection of this new `fixed-metric' effect in acoustic geometries, are briefly discussed.
Keywords
Cite
@article{arxiv.1510.01436,
title = {Intertial Frame Dragging in an Acoustic Analogue spacetime},
author = {Chandrachur Chakraborty and Oindrila Ganguly and Parthasarathi Majumdar},
journal= {arXiv preprint arXiv:1510.01436},
year = {2018}
}
Comments
LaTex; 6 pages including 1 figure; paper thoroughly revised, accepted for publication in Annalen der Physik