• Corpus ID: 119191541

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}
}

• G. Cronenberg, H. Filter, +3 authors P. Geltenbort
• Published 30 December 2015
• Physics
• arXiv: High Energy Physics - Experiment

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-like interaction at a micrometer interaction range. In particular, a dark energy candidate, the chameleon field is restricted to $\beta<6.9\times10^{6}$ for $n=2$ (95\% C.L.).