# A Gravity of Earth Measurement with a qBOUNCE Experiment

@article{Cronenberg2015AGO, title={A Gravity of Earth Measurement with a qBOUNCE Experiment}, author={Gunther Cronenberg and Hanno Filter and Martin Thalhammer and Tobias Jenke and Hartmut Abele and Peter Geltenbort}, journal={arXiv: High Energy Physics - Experiment}, year={2015} }

We report a measurement of the local acceleration $g$ with ultracold neutrons based on quantum states in the gravity potential of the Earth. The new method uses resonant transitions between the states $|1> -> |3>$ and for the first time between $|1> -> |4>$. The measurements demonstrate that Newton's Inverse Square Law of Gravity is understood at micron distances at an energy level of $10^{-14}$ eV with $\frac{\Delta g}{g}=4\times10^{-3}$. The results provide constraints on any possible gravity…

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