A Gravity of Earth Measurement with a qBOUNCE Experiment

Abstract

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 $\frac{\Delta g}{g}=4\times 10^{-3}$. 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 $\beta <6.9\times 10^6$ for $n=2$ (95\% C.L.).

Proceedings of the EPS Conference on High Energy Physics 2015

References in corpus (5)

• Atom-interferometry constraints on dark energy
• Gravity Resonance Spectroscopy Constrains Dark Energy and Dark Matter Scenarios
• Neutron Interferometry constrains dark energy chameleon fields
• Inertial and gravitational mass in quantum mechanics
• Frequency shifts in gravitational resonance spectroscopy

Cited by in corpus (8)

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• Probing of violation of Lorentz invariance by ultracold neutrons in the Standard Model Extension
• Quantum gravitational states of ultracold neutrons as a tool for probing of beyond-Riemann gravity
• Dynamics of a composite quantum bouncing ball