Null Result for the Violation of Equivalence Principle with Free-Fall Rotating Gyroscopes

Abstract

The differential acceleration between a rotating mechanical gyroscope and a non-rotating one is directly measured by using a double free-fall interferometer, and no apparent differential acceleration has been observed at the relative level of 2x10{-6}. It means that the equivalence principle is still valid for rotating extended bodies, i.e., the spin-gravity interaction between the extended bodies has not been observed at this level. Also, to the limit of our experimental sensitivity, there is no observed asymmetrical effect or anti-gravity of the rotating gyroscopes as reported by hayasaka et al.

REVTeX 3.0, 7 pages with 4 Postscript figures

Cited by in corpus (13)

• Test of the universality of free fall with atoms in different spin Orientations
• Test of the universality of free fall with atoms in different spin orientations
• Searches for the role of spin and polarization in gravity
• New Upper Limit of Terrestrial Equivalence Principle Test for Rotating Extended Bodies
• Helicity-Rotation-Gravity Coupling for Gravitational Waves
• Rotation, Equivalence Principle, and GP-B Experiment
• General Relativistic Effects on Quantum Interference and the Principle of Equivalence
• Nonlocal Dirac Equation for Accelerated Observers
• Identification of Error Sources in High Precision Weight Measurements of Gyroscopes
• On the possibility of measuring the Earth's gravitomagnetic force in a new laboratory experiment
• Search for Frame-Dragging-Like Signals Close to Spinning Superconductors
• Spin-Spin Interactions in Gauge Theory of Gravity, Violation of Weak Equivalence Principle and New Classical Test of General Relativity
• Frequency Dependence of Rotor's Free Falling Acceleration and Inequality of Inertial and Gravity Masses