dc.identifier.uri |
http://dx.doi.org/10.15488/9983 |
|
dc.identifier.uri |
https://www.repo.uni-hannover.de/handle/123456789/10042 |
|
dc.contributor.author |
Schmidt, Helena
|
ger |
dc.date.accessioned |
2020-08-14T06:52:35Z |
|
dc.date.available |
2020-08-14T06:52:35Z |
|
dc.date.issued |
2020 |
|
dc.identifier.citation |
Schmidt, Helena: Yukawa force spectroscopy to search for violations of Newton’s law of gravity below 1 μm distances. Hannover : Gottfried Wilhelm Leibniz Universität, Diss., 2020, 152 S. DOI: https://doi.org/10.15488/9983 |
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dc.description.abstract |
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. |
eng |
dc.language.iso |
eng |
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dc.publisher |
Hannover : Institutionelles Repositorium der Leibniz Universität Hannover |
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dc.rights |
CC BY 3.0 DE |
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dc.rights.uri |
http://creativecommons.org/licenses/by/3.0/de/ |
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dc.subject |
Newton's law of Gravity |
eng |
dc.subject |
Casimir effect |
eng |
dc.subject |
Gravitation |
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dc.subject |
Yukawa Potential |
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dc.subject |
Casimir Effekt |
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dc.subject.ddc |
530 | Physik
|
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dc.title |
Yukawa force spectroscopy to search for violations of Newton’s law of gravity below 1 μm distances |
eng |
dc.type |
DoctoralThesis |
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dc.type |
Text |
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dcterms.extent |
152 S. |
|
dc.description.version |
publishedVersion |
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tib.accessRights |
frei zug�nglich |
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