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arXiv · 1510.01436

Intertial Frame Dragging in an Acoustic Analogue spacetime

Chandrachur Chakraborty·Oindrila Ganguly·Parthasarathi Majumdar
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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.

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BibTeXRIS

Chandrachur Chakraborty, Oindrila Ganguly, Parthasarathi Majumdar. 2017-09-21. Intertial Frame Dragging in an Acoustic Analogue spacetime. https://doi.org/10.1002/andp.201700231

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