scholarly journals Elementary analysis of the special relativistic combination of velocities, Wigner rotation and Thomas precession

2011 ◽  
Vol 32 (4) ◽  
pp. 1033-1047 ◽  
Author(s):  
Kane O’Donnell ◽  
Matt Visser
2020 ◽  
Vol 129 (3) ◽  
pp. 30006
Author(s):  
Alexander Kholmetskii ◽  
Oleg Missevitch ◽  
Tolga Yarman ◽  
Metin Arik

2015 ◽  
Vol 93 (5) ◽  
pp. 503-518 ◽  
Author(s):  
Alexander L. Kholmetskii ◽  
Tolga Yarman

We continue the analysis of Thomas–Wigner rotation (TWR) and Thomas precession (TP) initiated in (Kholmetskii and Yarman. Can. J. Phys. 92, 1232 (2014). doi:10.1139/cjp-2014-0015 ; Kholmetskii et al. Can. J. Phys. 92, 1380 (2014). doi:10.1139/cjp-2014-0140 ), where a number of points of serious inconsistency have been found in the relativistic explanation of these effects. These findings motivated us to address covariant ether theories (CET), as suggested by the first author (Kholmetskii. Phys. Scr. 67, 381 (2003)) and to show that both TWR and TP find a perfect explanation in CET. We briefly reproduce the main points of CET, which are constructed on the basis of general symmetries of empty space–time, general relativity principles, and classical causality, instead of Einstein’s postulates of the special theory of relativity (STR). We demonstrate that with respect to all known relativistic experiments performed to date in all areas of physics, both theories, STR and CET, yield identical results. We further show that the only effect that differentiates STR and CET is the measurement of time-dependent TWR of two inertial frames, K1 and K2, related by the rotation-free Lorentz transformation with a third inertial frame, K0, in the situation, where the relative velocity between K1 and K2 remains fixed. We discuss the results obtained and suggest a novel experiment, which can be classified as a new crucial test of STR.


2014 ◽  
Vol 92 (10) ◽  
pp. 1232-1240 ◽  
Author(s):  
Alexander L. Kholmetskii ◽  
Tolga Yarman

We show that the explanation of Thomas–Wigner rotation and Thomas precession (TP) in the framework of special theory of relativity (STR) contains a number of points of inconsistency, in particular, with respect to physical interpretation of the Einstein velocity composition law in successive space–time transformations. In addition, we show that the common interpretation of TP falls into conflict with the causality principle. To eliminate such a conflict, we suggest considering the velocity parameter, entering into the expression for the frequency of TP, as being always related to a rotation-free Lorentz transformation. Such an assumption (which actually resolves any causal paradoxes with respect to TP), comes however to be in contradiction with the spirit of STR. The results obtained are discussed.


2015 ◽  
Vol 66 (11) ◽  
pp. 1656-1663 ◽  
Author(s):  
Danail S. Brezov ◽  
Clementina D. Mladenova ◽  
Ivaïlo M. Mladenov

2020 ◽  
Vol 41 (5) ◽  
pp. 055601
Author(s):  
Alexander L Kholmetskii ◽  
Tolga Yarman

2019 ◽  
Vol 16 (3) ◽  
pp. 444-448 ◽  
Author(s):  
Biyun Su ◽  
Yaning Li ◽  
Dandan Pan ◽  
Paison Faida ◽  
Tingyu Yan ◽  
...  

Aim and Objective: The late transition metal complexes with five-membered heterocyclic mono-imine ligands have attracted much attention because of their potential application in olefin polymerization catalysis. In order to increase the coordination ability of heteroatom N and S to center metals, CH3 group was introduced into the side arm of pyrrole imine and thiophene imine respectively, to get two series of novel five-membered heterocyclic imine compounds, mono(imino)pyrroles and mono(imino)thiophenes Materials and Methods: Two series of novel five-membered heterocyclic compounds with the mono-imine group were synthesized from the p-toluene sulfonic acid catalyzed Schiff base condensation of aromatic amines and 2-acetylpyrrole/ 2-acetylthiophene respectively, using CH3 group to substitute the common H atom on the side arm of pyrrole imine/ thiophene imine. Results: All the heterocyclic mono-imine compounds were characterized adequately by means of 1H NMR, 13C NMR, FT-IR, elementary analysis, as well as X-ray crystallographic diffraction. The reactivity differences between two precursor 2-acetylpyrrole and 2-acetylthiophene with aromatic amines were compared and discussed in detail. Conclusion: Compared to traditional heating methods, the solvent-free microwave irradiation seemed more efficient to prepare these series of five-membered heterocyclic mono-imine compounds, which resulted in a higher yield and cleaner product.


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