Yarman, Nuh Tolga
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Name Variants
N. T. Yarman
Nuh Tolga YARMAN
N. T. YARMAN
N. Tolga Yarman
Yarman, Nuh Tolga
YARMAN Nuh Tolga
Yarman Nuh Tolga
Nuh T. Yarman
Yarman, N.
Yarman, T.
Yarman, Tolga
Yarman, Nuh
Nuh Tolga Yarman
Nuh Tolga, Yarman
Nuh Tolga YARMAN
N. T. YARMAN
N. Tolga Yarman
Yarman, Nuh Tolga
YARMAN Nuh Tolga
Yarman Nuh Tolga
Nuh T. Yarman
Yarman, N.
Yarman, T.
Yarman, Tolga
Yarman, Nuh
Nuh Tolga Yarman
Nuh Tolga, Yarman
Job Title
Prof.Dr.
Email Address
tolga.yarman@okan.edu.tr
ORCID ID
Scopus Author ID
Turkish CoHE Profile ID
Google Scholar ID
WoS Researcher ID
Scholarly Output
102
Articles
85
Citation Count
630
Supervised Theses
0
102 results
Scholarly Output Search Results
Now showing 1 - 10 of 102
Article Citation Count: 9Super-massive objects in Yarman-Arik-Kholmetskii (YARK) gravitation theory(Canadian Science Publishing, 2016) Yarman, Tolga; Yarman, Nuh Tolga; Arik, Metin; Kholmetskii, Alexander; Yarman, Ozan; Enerji Sistemleri Mühendisliği / Energy Systems EngineeringWe continue to analyze the implications of the gravitational framework of our theoretical approach, christened YARK (abbreviated from Yarman-Arik-Kholmetskii), with respect to super-massive celestial bodies. We emphasize in particular that a gravitating test particle in the presence of a ponderable mass must adhere to the law of energy conservation, which remarkably does not yield any singularity according to YARK. Even so, for a given spherically shaped extremely compact super-massive body, one can achieve a theoretical radius below which "light" of, say, the visible frequency range can indeed be trapped. Yet, such a radius comes out to be tens of times shorter than the threshold radius for black hole formation as established by the general theory of relativity (GTR). In accordance with our derivations, the minimal mass for a celestial object capable of recapturing emitted light in its environs - similar to textbook "intermediate class black holes" - is found to be about 10(3)M(S), where M-S stands for the mass of the Sun. For less massive celestial objects, the crucial radius that produces a "YARK black hole" (i.e., without singularity) corresponds to a higher density than the density of a baryon; and hence, such entities cannot apparently exist in nature. Black holes allowed therefore in our approach are not related, in any case, to the singularity conceptualization of GTR. As a consequence, we are able to present a resolution to the "black hole information paradox". The findings of YARK will be discussed hereinafter with regards to the foundations of observational cosmology.Article Citation Count: 9Mossbauer experiments in a rotating system, Doppler effect and the influence of acceleration(Springer Heidelberg, 2018) Kholmetskii, Alexander; Yarman, Nuh Tolga; Yarman, Tolga; Yarman, Ozan; Arik, Metin; Enerji Sistemleri Mühendisliği / Energy Systems EngineeringWe address a recent measurement carried out by Friedman et al. (J. Synchrotron Rad. 24, 661 (2017)) that was contingent upon the Mossbauer effect arising from the application of resonant synchrotron radiation on an orbiting resonant absorber, where the authors claim to have detected the influence of the centrifugal acceleration of the absorber on the measured shift of the resonant line. We show that a later attempt to explain the outcome of this experiment via the time-dependent Doppler effect in an accelerated frame (E. Benedetto and A. Feoli, Eur. Phys. J. Plus 133, 53 (2018)) is based on a misinterpretation of the Mossbauer effect and should thenceforth be rejected. We further show that the revealed dependence of the energy shift of the resonant line on the centrifugal acceleration of the resonant absorber could happen solely due to instrumental factors. In this regard, a realistic way to analyze the origin of the extra energy shift between emission and absorption lines in a rotating system is proposed.Article Citation Count: 0Einstein's "Clock Hypothesis" and Mossbauer Experiments in a Rotating System(Walter de Gruyter Gmbh, 2019) Kholmetskii, Alexander; Yarman, Nuh Tolga; Yarman, Tolga; Yarman, Ozan; Arik, Metin; Enerji Sistemleri Mühendisliği / Energy Systems EngineeringAn 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.Article Citation Count: 3The relativistic mechanism of the Thomas-Wigner rotation and Thomas precession(Iop Publishing Ltd, 2020) Kholmetskii, Alexander L.; Yarman, Nuh Tolga; Yarman, Tolga; Enerji Sistemleri Mühendisliği / Energy Systems EngineeringWe consider the Thomas-Wigner rotation of coordinate systems under successive Lorentz transformations of inertial reference frames, and disclose its physical mechanism on the basis of the relativistic contraction of moving scale, and the relativity of the simultaneity of events for different inertial observers. This result allows us to better understand the physical meaning of the Thomas precession, and to indicate some overlooked aspects of the physical interpretation of this effect, as related to two specific examples: the circular motion of a classical electron around a heavy nucleus, and the motion of a classical electron along an open path, where its initial velocity and acceleration are mutually orthogonal to each other.Article Citation Count: 5On the synchronization of a clock at the origin of a rotating system with a laboratory clock in Mossbauer rotor experiments(Academic Press inc Elsevier Science, 2019) Kholmetskii, Alexander L.; Yarman, Nuh Tolga; Yarman, Tolga; Yarman, Ozan; Arik, Metin; Enerji Sistemleri Mühendisliği / Energy Systems EngineeringWe show that the attempt by Corda (2015) to explain the results of Mossbauer rotor experiments via introducing the effect of the synchronization of a clock at the origin of a rotating system with a laboratory clock is erroneous and must be rejected. (C) 2019 Elsevier Inc. All rights reserved.Article Citation Count: 6Apparent paradoxes in classical electrodynamics: relativistic transformation of force(Iop Publishing Ltd, 2007) Kholmetskii, A. L.; Yarman, Nuh Tolga; Yarman, T.; Enerji Sistemleri Mühendisliği / Energy Systems EngineeringIn this paper, we analyse a number of paradoxical teaching problems of classical electrodynamics, dealing with the relativistic transformation of force for complex macro systems, consisting of a number of subsystems with nonzero relative velocities such as electric circuits that change their shape in the course of time.Conference Object Citation Count: 1New Dirac Equation from the View Point of Particle(Amer inst Physics, 2012) Ozaydin, Fatih; Yarman, Nuh Tolga; Altintas, Azmi Ali; Susam, Lidya Amon; Arik, Metin; Yarman, Tolga; Enerji Sistemleri Mühendisliği / Energy Systems EngineeringAccording to the classical approach, especially the Lorentz Invariant Dirac Equation, when particles are bound to each other, the interaction term appears as a quantity belonging to the "field". In this work, as a totally new approach, we propose to alter the rest masses of the particles due to their interaction, as much as their respective contributions to the static binding energy. Thus we re-write and solve the Dirac Equation for the hydrogen atom, and amazingly, obtain practically the same numerical results for the ground states, as those obtained from the Dirac Equation.Article Citation Count: 3Poynting Theorem, Relativistic Transformation of Total Energy-Momentum and Electromagnetic Energy-Momentum Tensor(Springer, 2016) Kholmetskii, Alexander; Yarman, Nuh Tolga; Missevitch, Oleg; Yarman, Tolga; Enerji Sistemleri Mühendisliği / Energy Systems EngineeringWe address to the Poynting theorem for the bound (velocity-dependent) electromagnetic field, and demonstrate that the standard expressions for the electromagnetic energy flux and related field momentum, in general, come into the contradiction with the relativistic transformation of four-vector of total energy-momentum. We show that this inconsistency stems from the incorrect application of Poynting theorem to a system of discrete point-like charges, when the terms of self-interaction in the product (where the current density and bound electric field are generated by the same source charge) are exogenously omitted. Implementing a transformation of the Poynting theorem to the form, where the terms of self-interaction are eliminated via Maxwell equations and vector calculus in a mathematically rigorous way (Kholmetskii et al., Phys Scr 83:055406, 2011), we obtained a novel expression for field momentum, which is fully compatible with the Lorentz transformation for total energy-momentum. The results obtained are discussed along with the novel expression for the electromagnetic energy-momentum tensor.Article Citation Count: 1Comparison of traditional and synchrotron beam methodologies in Mossbauer experiments in a rotating system(int Union Crystallography, 2021) Kholmetskii, A. L.; Yarman, Nuh Tolga; Yarman, T.; Yarman, O.; Arik, M.; Enerji Sistemleri Mühendisliği / Energy Systems EngineeringRecent Mossbauer experiments in a rotating system reported by others in the literature have involved the application of synchrotron radiation onto a spinning semi-circular resonant absorber. Here, the physical interpretation of these methodologies, and their alleged performance improvement, is analyzed in the light of our own team's past experience based instead on the traditional laboratory setup. It is shown that a number of fundamental shortcomings in the approach reported in the literature deprives it of any practical significance with respect to the improvement of the technique of Mossbauer rotor experiments with a synchrotron source. It is concluded that, at present, only Mossbauer experiments relying on an ordinary compact source of resonant radiation and a resonant absorber both fixed on the rotor promise to provide crucial information with respect to the physical origin of the observed energy shift between emitted and absorbed resonant radiation in a rotating system.Article Citation Count: 8LIGO's "GW150914 signal" reproduced under YARK theory of gravity(Canadian Science Publishing, 2017) Yarman, T.; Yarman, Nuh Tolga; Kholmetskii, A. L.; Yarman, O.; Marchal, C. B.; Arik, M.; Enerji Sistemleri Mühendisliği / Energy Systems EngineeringThe widely publicized "GW150914 event" that was recently detected by the LIGO Scientific Collaboration is given as confirmation of gravitational waves (GWs) predicted by Albert Einstein in his general theory of relativity (GTR), although the extremely weak intensity of this signal does not allow confirmation of all of the specific properties of GWs predicted in GTR. In the present contribution, we provide an alternative explanation of the LIGO signal without GWs under the framework of Yarman-Arik-Kholmetskii (YARK) gravitation theory, which has garnered considerable success during the past years in accounting for landmark astrophysical observations so far thought to confirm GTR, as well as recent laboratory-scale experiments that were shown to be at odds with GTR. According to YARK, the coalescence of super-massive bodies in a distant binary system would induce a related alteration of the wavelength of the laser beam used in the LIGO Michelson-Morley interferometer, as well as the emergence of mechanical stresses in the suspended mirrors. We show that the latter effect turns out to be negligible, and thus, the variation of the phase alone of the laser beam in the output of the Michelson-Morley interferometer suffices to describe the amplitude and the shape of the observed LIGO signal. In addition, the binary merger necessitates a rest mass decrease in YARK (which we calculated to be about 3.1 solar masses on the whole) that we predict should be released via electromagnetic radiation emission according to our theory. We point out that electromagnetic radiation of exactly the same kind is in fact responsible, instead of GWs, for the energy loss in the Hulse-Taylor binary system. Our numerical results thus well match the GW150914 interference pattern without involving any GWs hypothesis.
