Newton's law of Gravity ; Casimir effect ; Gravitation ; Yukawa Potential
Zusammenfassung
Gravity is well tested on several length scales, but some unified theories predict deviations in the region below 1 mm. In this thesis I will present a method to search for such deviations in the sub-micrometre length scale. Below 1 μm, the electrostatic and the Casimir force are stronger than the gravitational force by some magnitudes. To distinguish these forces, I have designed a new force measurement setup based on the frequency modulation AFM technique. Utilizing a quartz based parallelogram cantilever, it is feasible to measure these forces with sufficient accuracy for us to set new constraints for possible deviations of gravity. In this thesis I will present a new method of measuring such deviations of gravity, and show the initial results I have obtained using it. This will show that the measurement concept works, but that improvements are necessary before we can achieve optimum measurement uncertainty.
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Open Access Gold
Rechteinformation
CC BY 3.0 ; Creative Commons Attribution 3.0 License
Themenbereich der Metrologie
Nanometrologie
Zitierung
Schmidt, H. (2020). Yukawa force spectroscopy to search for violations of Newton’s law of gravity below 1 μm distances [Dissertation, Universität Hannover, 2020]. https://doi.org/10.15488/9983
