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qBounce: Systematic shifts of transition frequencies of gravitational states of ultra-cold neutrons using Ramsey gravity resonance spectroscopy
- Source :
- Proceedings of the 56th RENCONTRES DE MORIOND - Gravitation 2022, page 143-148
- Publication Year :
- 2023
-
Abstract
- qBounce is using quantum states of ultra-cold neutrons in the gravitational field of the Earth to investigate gravitation in the micrometre range. We present current measurements taken in 2021 at the Institut Laue-Langevin (ILL) to determine energy differences of these states by mechanically induced transitions. This allows a determination of the local acceleration $g$ using a quantum measurement. The data presented here results in $g=9.8120(18) m/s^2$. The classical local value at the experiment is $g_c=9.8049 m/s^2$. We present an analysis of systematic effects that induces shifts of the transition frequency of order 100 mHz. The inferred value for $g$ at the experiment shows a systematic shift of $\delta g\approx3.9\sigma$.
Details
- Database :
- arXiv
- Journal :
- Proceedings of the 56th RENCONTRES DE MORIOND - Gravitation 2022, page 143-148
- Publication Type :
- Report
- Accession number :
- edsarx.2301.08583
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.58027/1e1n-7973