Einstein's "Clock Hypothesis" and Mossbauer Experiments in a Rotating System


KHOLMETSKII A., Yarman T., Yarman O. U. , Arik M.

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES, cilt.74, ss.91-100, 2019 (SCI İndekslerine Giren Dergi) identifier

  • Cilt numarası: 74 Konu: 2
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1515/zna-2018-0354
  • Dergi Adı: ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES
  • Sayfa Sayıları: ss.91-100

Özet

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 Mossbauer 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 Mossbauer rotor experiment to determine the most feasible mechanism for testing the dependence of the rate of a clock on its acceleration.