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  Testing of Quantum Gravity With Sub-Kilogram Acoustic Resonators

Bushev, P. A., Bourhill, J., Goryachev, M., Kukharchyk, N., Ivanov, E., Galliou, S., et al. (in preparation). Testing of Quantum Gravity With Sub-Kilogram Acoustic Resonators.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0003-5427-3 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-546E-4
Genre: Paper

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1903.03346.pdf (Preprint), 2MB
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 Creators:
Bushev, P. A., Author
Bourhill, J., Author
Goryachev, M., Author
Kukharchyk, N., Author
Ivanov, E., Author
Galliou, S., Author
Tobar, M. E., Author
Danilishin, S.1, Author              
Affiliations:
1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010              

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Free keywords: Quantum Physics, quant-ph, Condensed Matter, Mesoscale and Nanoscale Physics, cond-mat.mes-hall,General Relativity and Quantum Cosmology, gr-qc
 Abstract: Recent progress in observing and manipulating mechanical oscillators at quantum regime provides new opportunities of studying fundamental physics, for example to search for low energy signatures of quantum gravity. For example, it was recently proposed that such devices can be used to test quantum gravity effects, by detecting the change in the [x,p] commutation relation that could result from quantum gravity corrections. We show that such a correction results in a dependence of a resonant frequency of a mechanical oscillator on its amplitude, which is known as amplitude-frequency effect. By implementing of this new method we measure amplitude-frequency effect for 0.3 kg ultra high-Q sapphire split-bar mechanical resonator and for 10 mg quartz bulk acoustic wave resonator. Our experiments with sapphire resonator have established the upper limit on quantum gravity correction constant of beta_0 to not exceed 5000000 which is factor of 6 better than previously detected. The reasonable estimates of beta_0 from experiments with quartz resonators yields even more stringent limit of 40000.

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 Dates: 2019-03-08
 Publication Status: Not specified
 Pages: 3 figures
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1903.03346
URI: http://arxiv.org/abs/1903.03346
 Degree: -

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