Since the experiment of Yves and Stilwell in 1938

  • Ives, H. E.; Stilwell, G. R. (1938). "An experimental study of the rate of a moving atomic clock".
  • Ives, H. E.; Stilwell, G. R. (1941). "An experimental study of the rate of a moving atomic clock. II".

Several experiments have been performed measuring the transverse Doppler frequency shift between moving bodies.

The ones above were performed with a constant speed moving emitter ( INERTIAL) in the Lab frame detecting a REDSHIFT

below some other examples with moving emitters

  • Mandelberg, Hirsch I.; Witten, Louis (1962). "Experimental verification of the relativistic doppler effect".
  • Hasselkamp, D.; Mondry, E.; Scharmann, A. (1979). "Direct observation of the transversal Doppler-shift".
  • Reinhardt, S.; Saathoff, G.; Buhr, H.; (2007). "Test of relativistic time dilation with fast optical atomic clocks at different velocities".

Conference Paper Testing Time Dilation on Fast Ion Beams

Many others with a circular moving absorber (CENTRIFUGE) at constant speed detecting BLUESHIFT

  • Kündig, Walter (1963). "Measurement of the Transverse Doppler Effect in an Accelerated System".
  • .
  • Turner, K. C.; Hill, H. A. (1964). "New Experimental Limit on Velocity-Dependent Interactions of Clocks and Distant Matter".
  • Article Kündig's experiment on the transverse Doppler shift re-analyzed

As also pointed out by Giuliani https://arxiv.org/pdf/1502.00990.pdf

one of the experiments showed also a Null shift:

  • Champeney D C and Moon P B 1961 Absence of Doppler Shift for Gamma Ray Source and Detector on Same Circular Orbit

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Although the TDE is well predicted within the theory of Special Relativity, with the use of the LT, all the above shows that the reciprocity of transverse red-shifts (or blueshifts) between IRFs (or blueshift) cannot occur in experiments.

What occured and can occur in LAB is:

being A and B two systems going at constant speed

A redshift of the EM radiation emitted transversally from A to B corresponds to a blueshift of EM radiation emitted transversally from B to A, (at variance with the expected reciprocity between IRFs). The only alternative which is symmetrical is a null shift if both A and B move symmetrically in the LAB frame with v and -v. This is in full agreement with the conservation laws of energy and momentum.

In other words *no experiment* can be built as a confirmation of the symmetry of the transversal frequency-shift, but all experiments show an asymmetry of behaviour. In other words the predictions of the inverse of the Lorentz Transformations are disconfirmed.

Strange enough the first experiment of Yves and Stilwell was setup on purpose to confirm the presence of the preferred frame of the Lorentz-Larmor theory of Electrodynamics.

Last but not least, there is nothing which can distinguish two parallel platforms which run at relative speed v by exchanging transversally their radiation. There is nothing to discriminate, by applying the LT, that two parallel platforms should see red-shift both ways for exchanging radiation at right angles.

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