Gauss's law test of gravity at short range.
Abstract
A null test of the gravitational inverse-square law can be performed by testing Gauss's law for the field. The authors have constructed a three-axis superconducting gravity gradiometer and carried out such a test. A lead pendulum weighing 1500 kg was used to produce a time-varying field. This experiment places a new (2σ) limit of α = (0.9±4.6)×10-4 at λ = 1.5 m, where α and λ are parameters of the generalized potential φ = -(GM/r)(1 + αe-r/λ).
- Publication:
-
Physical Review Letters
- Pub Date:
- March 1993
- DOI:
- 10.1103/PhysRevLett.70.1195
- Bibcode:
- 1993PhRvL..70.1195M
- Keywords:
-
- Accelerometers;
- Gauss Equation;
- Gravitation;
- Gravity Gradiometers;
- Null Hypothesis;
- Calibrating;
- Error Analysis;
- Instrument Errors;
- Sensitivity;
- Physics (General);
- Gravitation Theory: Tests;
- 04.90.+e;
- 04.80.+z;
- Other topics in general relativity and gravitation