A New Apparatus for Detecting Micron-Scale Deviations from Newtonian Gravity

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dc.creatorWeld, D. M.
dc.creatorXia, J.
dc.creatorCabrera, B.
dc.creatorKapitulnik, A.
dc.date2008-01-07
dc.date2008-02-12
dc.date.accessioned2026-07-07T11:14:01Z
dc.date.available2026-07-07T11:14:01Z
dc.descriptionWe describe the design and construction of a new apparatus for detecting or constraining deviations from Newtonian gravity at short length scales. The apparatus consists of a new type of probe with rotary mass actuation and cantilever-based force detection which is used to directly measure the force between two micromachined masses separated by tens of microns. We present the first data from the experiment, and discuss the prospects of more precisely constraining or detecting non-Newtonian effects using this probe. Currently, the sensitivity to attractive mass-dependent forces is equal to the best existing limits at length scales near 5 microns. No non-Newtonian effects are detected at that level.
dc.description20 pages, 24 figures. Added references, edited discussion for clarity
dc.identifierhttps://arxiv.org/abs/0801.1000
dc.identifierhttp://arxiv.org/abs/0801.1000
dc.identifierPhys.Rev.D77:062006,2008
dc.identifierdoi:10.1103/PhysRevD.77.062006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/191920
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectOther Condensed Matter
dc.subjectHigh Energy Physics - Phenomenology
dc.titleA New Apparatus for Detecting Micron-Scale Deviations from Newtonian Gravity
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