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My research in gravitation physics is centered on a composition-independent test of Newton's inverse-square law. This experiment is designed to probe for deviations from Newton's law of gravity to better than a part in 10,000 at a distance of roughly 10 cm. The website of the University of California branch of the collaboration is found here.
Renditions of the ISLV pendulum and the ISLV source mass. The pendulum is made of fused silica and the source mass of stainless steel. The design of the pendulum and source mass is such that all low-order multipole gravitational interactions (with m=1 symmetry) are supressed while a multipole interaction that corresponds to a gradient in the vacuum Laplacian (a signature of deviations from Newtonian gravity) is maximized.
Talk given at Princeton University. March 2007.
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