Topic
Kennedy–Thorndike experiment
About: Kennedy–Thorndike experiment is a research topic. Over the lifetime, 25 publications have been published within this topic receiving 405 citations.
Papers
TL;DR: In this article, the authors report on a method, based on fast optical atomic clocks with large, but different Lorentz boosts, that tests relativistic time dilation with unprecedented precision.
Abstract: Time dilation is one of the most fascinating aspects of special relativity as it abolishes the notion of absolute time. It was first observed experimentally by Ives and Stilwell in 1938 using the Doppler effect. Here we report on a method, based on fast optical atomic clocks with large, but different Lorentz boosts, that tests relativistic time dilation with unprecedented precision. The approach combines ion storage and cooling with optical frequency counting using a frequency comb. 7Li+ ions are prepared at 6.4% and 3.0% of the speed of light in a storage ring, and their time is read with an accuracy of 2×10−10 using laser saturation spectroscopy. The comparison of the Doppler shifts yields a time dilation measurement represented by a Mansouri–Sexl parameter , consistent with special relativity. This constrains the existence of a preferred cosmological reference frame and CPT- and Lorentz-violating ‘new’ physics beyond the standard model.
168 citations
TL;DR: In this article, the authors examined the Michelson-Morley interferometer from an inertial frame in which the apparatus was in motion, and showed that computing the paths of light in the apparatus depends on understanding the tilting of the half-silvered mirror due to Lorentz contraction, and also the effect of reflecting light from a moving mirror.
Abstract: We examine the Michelson–Morley interferometer from an inertial frame in which the apparatus is in motion. Our goal is to complete the typical introductory exposition which drops this discussion as soon as the postulates of relativity are introduced. Computing the paths of light in the apparatus depends on understanding the tilting of the half‐silvered mirror due to Lorentz contraction, and also the effect of reflecting light from a moving mirror. The traditional ray diagrams of the classical analysis are augmented to show these features more clearly.
19 citations
Posted Content•
TL;DR: In this article, the Lorentz transformation is used to analyse space and time coordinates corresponding to two spatially-separated clocks in the same inertial frame, and the time dilatation effect is confirmed, but not'relativity of simultaneity' or'relativistic length contraction'.
Abstract: The Lorentz transformation is used to analyse space and time coordinates corresponding to two spatially-separated clocks in the same inertial frame. The time dilatation effect is confirmed, but not `relativity of simultaneity' or `relativistic length contraction'. How these latter, spurious, effects arise from misuse of the Lorentz transformation is also explained.
15 citations
TL;DR: In this article, the combination of Robertson-Mansouri-sexl parameters of special relativity was analyzed using data from Lunar Laser Ranging (LRL) and an upper bound of 1.5 × 10 −4 was obtained.
12 citations
TL;DR: In this article, the general formula for the Doppler effect at any arbitrary angle was used to examine the three famous experiments for special theory of relativity. But they did not consider the effects of different angles.
Abstract: Using the general formula for the Doppler effect at any arbitrary angle, the three famous experiments for special theory of relativity will be examined. Explanation of the experiments of Michelson, Kennedy–Thorndike and Ives–Stilwell will be given in a precise and elegant way without postulates, arbitrary assumptions or approximations.
11 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2017 | 2 |
| 2016 | 1 |
| 2015 | 3 |
| 2014 | 2 |
| 2013 | 2 |
| 2012 | 1 |