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Zeitschrift für Naturforschung A

A Journal of Physical Sciences

Editor-in-Chief: Holthaus, Martin

Editorial Board: Fetecau, Corina / Kiefer, Claus

IMPACT FACTOR 2017: 1.414

CiteScore 2018: 1.15

SCImago Journal Rank (SJR) 2018: 0.370
Source Normalized Impact per Paper (SNIP) 2018: 0.431

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Volume 74, Issue 2


Einstein’s “Clock Hypothesis” and Mössbauer Experiments in a Rotating System

Alexander Kholmetskii / Tolga Yarman / Ozan Yarman / Metin Arik
Published Online: 2018-11-14 | DOI: https://doi.org/10.1515/zna-2018-0354


An extra energy shift between emitted and received radiation on a rotating disc – next to the conventionally recognised second-order Doppler shift – has been revealed in a series of recent Mössbauer experiments, where a radioactive source is fixed at the centre and an absorber is attached to the rim of the rotating disc. This disclosure gives indication to a possible violation of the “clock hypothesis” by Einstein: i.e. the independence of the rate of a clock on its acceleration. At the moment, there seem to be two plausible interpretations of this result: (i) the deviation of the geometry of the rotating disc from that predicted by the general theory of relativity (GTR), or (ii) the existence of a specific maximal acceleration in nature, when transformation between two accelerated frames differs from the corresponding transformation of the relativity theory. We take a closer look at both ways leading to the violation of the clock hypothesis; particularly, by analysing the outcomes of recent experiments in rotating systems and by suggesting a new Mössbauer rotor experiment to determine the most feasible mechanism for testing the dependence of the rate of a clock on its acceleration.

Keywords: Clock Hypothesis by Einstein; Mössbauer Experiments in a Rotating System; Special Theory of Relativity


About the article

Received: 2018-07-23

Accepted: 2018-10-22

Published Online: 2018-11-14

Published in Print: 2019-01-28

Citation Information: Zeitschrift für Naturforschung A, Volume 74, Issue 2, Pages 91–100, ISSN (Online) 1865-7109, ISSN (Print) 0932-0784, DOI: https://doi.org/10.1515/zna-2018-0354.

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