Title: Fist order ether drift experiment

Biography:

Ling Jun Wang is a Professor of Physics at University of Tennessee at Chattanooga, USA. His research interest is concentrated on theory of gravitation, general relativity and cosmology, laser physics and applications.

Abstract

Ling Jun Wang and his team have carried out a first order ether drift experiment over a period of two years. The signal to noise ratio of our first order experiment is four orders of magnitude greater than that of the second order experiments. The rotational velocity and the orbital velocity of the earth, and the galactic orbital velocity of the solar system with respect to the ether have been measured to be, respectively, 0.051 km/s, -0.19 km/s and 0.30 km/s, with a statistical error of 0.94 km/s. These velocities are merely 14%, 0.6% and 0.15% of the kinetic velocities of the earth and the solar system with respect to the Milky Way. The results show that the ether drift velocity with respect to the earth is zero well within experimental uncertainty. Since this uncertainty is greater than the velocity due to Earth’s rotation, the experimental error needs to be further reduced to establish the “null result” with respect to Earth’s rotation beyond doubt. Our experiment is fundamentally different in principle from the traditional ether drift experiments based on the interference of light. In particular, our experiment is free of the fringe running problems during the rotation of the interferometer, and therefore contributes a truly independent experiment from the interference experiments.