Constraints on Yukawa-type deviations from Newtonian gravity at 20 microns

Citations Over TimeTop 10% of 2005 papers

Abstract

Recent theories of physics beyond the standard model have predicted deviations from Newtonian gravity at short distances. In order to test these theories, we have a built an apparatus that can measure attonewton-scale forces between gold masses separated by distances on the order of $25\text{ }\text{ }\ensuremath{\mu}\mathrm{m}$. A micromachined silicon cantilever was used as the force sensor, and its displacement was measured with a fiber interferometer. We have used our measurements to set bounds on the magnitude $\ensuremath{\alpha}$ and length scale $\ensuremath{\lambda}$ of Yukawa-type deviations from Newtonian gravity; our results presented here yield the best experimental limit in the range of $\ensuremath{\lambda}=6--20\text{ }\text{ }\ensuremath{\mu}\mathrm{m}$.

Related Papers

• → Eigensolutions of the Schrödinger equation with a class of Yukawa potentials via supersymmetric approach(2015)56 cited
• → Strongly coupled Yukawa plasmas — models for dusty plasmas and colloidal suspensions(1999)27 cited
• → RESTRICTED PROBLEM OF THREE BODIES WITH NEWTONIAN + YUKAWA POTENTIAL(2004)10 cited
• → Monte Carlo simulation for the hard-core two-Yukawa fluids and test of the two-Yukawa equation of state(2002)46 cited
• → Strength of Yukawa Potential for Elementary Masses Less than Meson Mass(2021)