Frequency difference between two clocks at Tokyo Skytree: Contribution of Earth's self-rotation

Abstract

We focus on a fundamental issue about the physical meaning of the results of the experiment by Takamoto et al. (2020). Specifically, one must address the time dilation effect associated with the motion of the clocks around the self-rotational axis of Earth as seen by a remote observer free of such rotation. We accentuate the importance of taking into account this effect in the Tokyo Skytree experiment. This is especially relevant in the light of the results gathered from recent measurements of the Mossbauer effect in a rotating system. (c) 2020 Elsevier Inc. All rights reserved.