Absence of Doppler Shift for Gamma Ray Source and Detector on Same Circular Orbit

Champeney, D. C.; Moon, Philip

doi:10.1088/0370-1328/77/2/318

Cited by 71 publications

(112 citation statements)

References 3 publications

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“…All of the authors of the mentioned above papers [1][2][3][4][5][6] reported the value of k=0.5 within an accuracy about 1 %, confirming thus the original relativistic prediction with regards to the time dilation effect for a rotating object.…”

Section: Introductionsupporting

confidence: 52%

“…By such a way, Kündig recorded the shape and the position of resonant line on the energy scale versus the rotation frequency and thus his results were practically insensitive to the presence of possible mechanical vibrations in the rotor system, because such vibrations broaden resonant line, but do not affect its position on the energy scale due to their chaotic nature. In contrast, other authors [2][3][4][5][6] measured only the countrate of detected -quanta at a fixed rotational frequency , and their results were not protected from the distortions induced by vibrations.…”

Section: Introductionmentioning

confidence: 94%

“…[1][2][3][4][5][6]) soon after the discovery of the Mössbauer effect. In these experiments, an absorber orbited around a source of resonant gamma-radiation (or vice versa).…”

Section: Introductionmentioning

confidence: 99%

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Novel Mössbauer experiment in a rotating system and the extra-energy shift between emission and absorption lines

et al. 2016

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Abstract. We present the results of a novel Mössbauer experiment in a rotating system, implemented recently in Istanbul University, which yields the coefficient k=0.690.02 within the frame of the expression for the relative energy shift between emission and absorption lines E/E=ku 2 /c 2 . This result turned out to be in a quantitative agreement with an experiment achieved earlier on the subject matter (A.L. Kholmetskii et al. 2009 Phys. Scr. 79 065007), and once again strongly pointed to the inequality k>0.5, revealed originally in (A.L. Kholmetskii et al. 2008 Phys. Scr. 77, 035302 (2008) via the re-analysis of Kündig's experiment (W. Kündig. Phys. Rev. 129, 2371). A possible explanation of the deviation of the coefficient k from the relativistic prediction k=0.5 is discussed.

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Section: Introductionsupporting

confidence: 52%

Section: Introductionmentioning

confidence: 94%

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Novel Mössbauer experiment in a rotating system and the extra-energy shift between emission and absorption lines

et al. 2016

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“…In that way, Kündig's experiment can be considered as the most precise among other experiments of the same kind [4][5][6][7][8], where the experimenters measured only the count rate of detected γ−quanta as a function of rotation frequency. The authors of [1] have also shown that the experiment [8], which contains much more data than the ones in [4][5][6][7], also confirms the supposition k > 0.5. Motived by their results in [1] the authors carried out their own experiment [2].…”

Section: Introductionmentioning

confidence: 99%

“…Motived by their results in [1] the authors carried out their own experiment [2]. They decided to repeat neither the scheme of the Kündig experiment [3] nor the schemes of other known experiments on the subject previously mentioned above [4][5][6][7][8]. In that way, they got independent information on the value of k in equation (1).…”

Section: Introductionmentioning

confidence: 99%

Interpretation of Mössbauer experiment in a rotating system: A new proof for general relativity

Corda

2015

Annals of Physics

159

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A historical experiment by Kündig on the transverse Doppler shift in a rotating system measured with the Mössbauer effect (Mössbauer rotor experiment) has been recently first re-analyzed and then replied by an experimental research group. The results of re-analyzing the experiment have shown that a correct re-processing of Kündig's experimental data gives an interesting deviation of a relative redshift between emission and absorption resonant lines from the standard prediction based on the relativistic dilatation of time. That prediction gives a redshiftwhere v is the tangential velocity of the absorber of resonant radiation, c is the velocity of light in vacuum and the result is given to the accuracy of first-order in v 2 c 2 . Data re-processing gave ∇E E ≃ −k v 2 c 2 with k = 0.596 ± 0.006. Subsequent new experimental results by the reply of Kündig experiment have shown a redshift with k = 0.68 ± 0.03 instead.By using Einstein Equivalence Principle, which states the equivalence between the gravitational "force" and the pseudo-force experienced by an observer in a non-inertial frame of reference (included a rotating frame of reference) here we re-analyze the theoretical framework of Mössbauer rotor experiments directly in the rotating frame of reference by using a general relativistic treatment. It will be shown that previous analyses missed an 1 important effect of clock synchronization and that the correct general relativistic prevision in the rotating frame gives k ≃ 2 3 in perfect agreement with the new experimental results. Such an effect of clock synchronization has been missed in various papers in the literature with some subsequent claim of invalidity of relativity theory and/or some attempts to explain the experimental results through "exotic" effects. Our general relativistic interpretation shows, instead, that the new experimental results of the Mössbauer rotor experiment are a new, strong and independent, proof of Einstein general relativity.In the final Section of the paper we discuss an analogy with the use of General Relativity in Global Positioning Systems.

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Doppler Effect Reconsidered

Kantor¹

1992

Fortschr. Phys.

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Doppler effect, as currently formulated. uses numerical phase invariance and any linear coordinate transformations with identity transformations of nonzero spatial coordinates transverse to a rectilinear uniform relative motion; this is shown to subtly deny presumed motion, angular aberration effects, and Doppler effect. A critical review of past Doppler effect experiments confirms (10−3 to 10−7) a classical Doppler effect formulation that does not involve an ether concept, numerical phase invariance, or the use of any coordinate transformations.

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Absence of Doppler Shift for Gamma Ray Source and Detector on Same Circular Orbit

Cited by 71 publications

References 3 publications

Novel Mössbauer experiment in a rotating system and the extra-energy shift between emission and absorption lines

Novel Mössbauer experiment in a rotating system and the extra-energy shift between emission and absorption lines

Interpretation of Mössbauer experiment in a rotating system: A new proof for general relativity

Doppler Effect Reconsidered

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