Browsing by Author "Kholmetskii, Alexander L."

Now showing 1 - 20 of 28

Citation Count: 5
4/3 problem, Poynting theorem, and electromagnetic energy-momentum tensor
(Canadian Science Publishing, 2015) Yarman, Nuh Tolga; Missevitch, Oleg V.; Yarman, Tolga; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
We show that the familiar 4/3 problem originates from the incorrect determination of the momentum of the electromagnetic field generated by an isolated charged particle, which results from an incorrect application of the Poynting theorem to the field. To demonstrate this, we consider a macroscopic problem: splitting a charged oil droplet into two identical smaller droplets in the rest frame K of the original droplet, and in another inertial frame K' moving with respect to K with some constant velocity, and arrive at a physically senseless solution in the framework of the standard approach. To solve this problem in a correct way, we suggest a modified Poynting theorem for an isolated charge and recalculate the momentum of the electromagnetic field of this charge, which yields the usual relativistic relationship between the field energy and momentum. Our approach is not at odds with the idea about "Poincare stresses"; however, in contrast to the standard method, it provides a usual relationship between the "Poincare stress-energy" and the associated momentum stress component. Finally, the continuity equation in four-dimensional form for the case of isolated moving charge is also proposed, which completely resolves the 4/3 problem.
Citation Count: 3
Analyses of Mossbauer experiments in a rotating system: Proper and improper approaches
(Academic Press inc Elsevier Science, 2020) Yarman, Nuh Tolga; Yarman, Tolga; Yarman, O.; Arik, M.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
We examine various attempts to interpret the results of modern Mossbauer rotor experiments and show that the most recent approach developed by Podosenov et al. (0000) to understand these results implies an experimental configuration which has never been realized in the known experiments on this subject, and thus leaves the problem of the physical interpretation of the observed energy shift between emission and absorption lines in a rotating system under the framework of general relativity open. (C) 2020 Elsevier Inc. All rights reserved.
Citation Count: 0
Charged particle in a constant electric field: force on a parallel plate charged capacitor
(Iop Publishing Ltd, 2018) Yarman, Nuh Tolga; Missevitch, Oleg V.; Yarman, Tolga; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
We analyze the problem about the motion of a classical charged particle with negligible radiation losses inside a parallel plate charged capacitor and determine mutual forces acting between the charge and insulating capacitor plates in the rest frame of the capacitor and in the rest frame of the charge, correspondingly. In the latter case, the force on the capacitor's plates additionally contains a component associated with the flow of energy of mechanical stresses in the plates. We show that the misbalance of forces of action and reaction in this system is compensated by the time variation of momentum of the inter-actional electromagnetic field created by the capacitor and charge, which ensures the conservation of total momentum. The results obtained are helpful for better understanding the interaction of point-like charge with a charged body of finite size.
Citation Count: 1
THE CLASSICAL ADIABATIC CONSTANCY OF PV^γ FOR AN IDEAL GAS, CAN BE SHOWN TO BE A QUANTUM MECHANICAL OCCURRENCE, WHICH YIELDS THE PARTICULAR VALUE OF THE CONSTANT, IN QUESTION
(Turkish Soc thermal Sciences Technology, 2012) Yarman, Nuh Tolga; Kholmetskii, Alexander L.; Korfali, Onder; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
In this paper we find a full connection between the long lasting macroscopic classical laws of gases and the quantum mechanical description of non-interacting particles confined in a box, thus constituting an ideal gas. In such a gas, the motion of each individual molecule can be considered to be independent of all other molecules, and the macroscopic parameters of an ideal gas, mainly, pressure P and temperature T, can be defined as simple average quantities based on individual motions of all molecules in consideration. It is shown that for an ideal gas enclosed in a macroscopic cubic box of volume V, an alphanumeric expression for the Constant appearing in the classical law of adiabatic expansion law, i.e. PV5/3 = Constant, can be derived based on quantum mechanics. Note that this constant has otherwise remained for centuries, as just an abstract quantity in the form of P1V15/3=P2V25/3 = P3V35/3 written for different thermodynamic states, delineated through an adiabatic transformation. No one even seems to have thought that it may eventually have a particular expression. Physical implications of the result we disclose are discussed.
Citation Count: 4
The classical adiabatic constancy of PV^γ for an ideal gas as a quantum mechanical occurrence
(Academic Journals, 2010) Yarman, Nuh Tolga; Kholmetskii, Alexander L.; Korfali, Onder; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
In this paper, a connection between the long lasting macroscopic classical laws of gases and the quantum mechanical description of non-interacting particles confined in a box was found, thus constituting an ideal gas. In such a gas, the motion of each individual molecule can be considered to be independent of all other molecules, and the macroscopic parameters of an ideal gas, mainly, pressure P and temperature T, can be defined as simple average quantities based on individual motions of all molecules in consideration. It is shown that for an ideal gas enclosed in a macroscopic box of volume V, the constant gamma appearing in the classical law of adiabatic expansion law, that is, (PV gamma = constant), can be derived based on quantum mechanics. Physical implications of the result we disclose are discussed.
Citation Count: 16
Comment on "Interpretation of Mossbauer experiment in a rotating system: A new proof by general relativity"
(Academic Press inc Elsevier Science, 2015) Yarman, Nuh Tolga; Yarman, Tolga; Arik, Metin; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
[No Abstract Available]
Citation Count: 4
Comment on "New proof of general relativity through the correct physical interpretation of the Mossbauer rotor experiment" by C. Corda
(World Scientific Publ Co Pte Ltd, 2019) Yarman, Nuh Tolga; Yarman, Tolga; Yarman, Ozan; Arik, Metin; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
We analyze the attempt by C. Corda to explain the results of modern Mossbauer experiments in a rotating system via the additional effect of synchronization of the clock in the origin of the rotating system with the laboratory clock, and indicate errors committed by him.
Citation Count: 10
Comment on the note 'Faraday's law via the magnetic vector potential' by Dragan V Redzic
(Iop Publishing Ltd, 2008) Yarman, Nuh Tolga; Missevitch, Oleg V.; Yarman, Tolga; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
We find an error in the note [1] and suggest a correct expression for Faraday's law via the vector potential.
Citation Count: 7
Concerning Mossbauer experiments in a rotating system and their physical interpretation
(Academic Press inc Elsevier Science, 2019) Yarman, Nuh Tolga; Yarman, Tolga; Yarman, Ozan; Arik, Metin; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
We shortly review different attempts to interpret the results of Mossbauer rotor experiments in a rotating system and particularly we show that the latest work on this subject by J. lovane and E. Benedetto (2019), which claims that the outcomes of these experiments can supposedly be explained via "desynchronization of clocks" in the rotating frame and in the laboratory frame, is inapplicable to all of the Mossbauer rotor experiments performed up to date and thus does not have any significance. (C) 2019 Elsevier Inc. All rights reserved.
Citation Count: 5
Different paths to some fundamental physical laws: relativistic polarization of a moving magnetic dipole
(Iop Publishing Ltd, 2010) Yarman, Nuh Tolga; Yarman, T.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
In this paper we consider the relativistic polarization of a moving magnetic dipole and show that this effect can be understood via the relativistic generalization of Kirchhoff's first law to a moving closed circuit with a steady current. This approach allows us to better understand the law of relativistic transformation of four-current density when it is applied to the moving macroscopic magnetic dipoles.
Citation Count: 12
Electromagnetic force on a moving dipole
(Iop Publishing Ltd, 2011) Yarman, Nuh Tolga; Missevitch, Oleg V.; Yarman, T.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
We analyse the force acting on a moving dipole due to an external electromagnetic field and show that the expression derived in Vekstein (1997 Eur. J. Phys. 18 113) is erroneous and suggest the correct equation for the description of this force. We also discuss the physical meaning of the relativistic transformation of current for a closed circuit and carry out the analysis of a number of particular physical problems, which are important from the educational viewpoint.
Citation Count: 10
Force law in material media, hidden momentum and quantum phases
(Academic Press inc Elsevier Science, 2016) Yarman, Nuh Tolga; Missevitch, Oleg V.; Yarman, T.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
We address to the force law in classical electrodynamics of material media, paying attention on the force term due to time variation of hidden momentum of magnetic dipoles. We highlight that the emergence of this force component is required by the general theorem, deriving zero total momentum for any static configuration of charges/currents. At the same time, we disclose the impossibility to add this force term covariantly to the Lorentz force law in material media. We further show that the adoption of the Einstein-Laub force law does not resolve the issue, because for a small electric/magnetic dipole, the density of Einstein-Laub force integrates exactly to the same equation, like the Lorentz force with the inclusion of hidden momentum contribution. Thus, none of the available expressions for the force on a moving dipole is compatible with the relativistic transformation of force, and we support this statement with a number of particular examples. In this respect, we suggest applying the Lagrangian approach to the derivation of the force law in a magnetized/polarized medium. In the framework of this approach we obtain the novel expression for the force on a small electric/magnetic dipole, with the novel expression for its generalized momentum. The latter expression implies two novel quantum effects with non-topological phases, when an electric dipole is moving in an electric field, and when a magnetic dipole is moving in a magnetic field. These phases, in general, are not related to dynamical effects, because they are not equal to zero, when the classical force on a dipole is vanishing. The implications of the obtained results are discussed. (C) 2016 Elsevier Inc. All rights reserved.
Citation Count: 1
GENERALIZED LORENTZ GROUP OF SPACE-TIME TRANSFORMATIONS
(Turkic World Mathematical Soc, 2020) Yarman, Nuh Tolga; Altintas, Azmi A.; Kholmetskii, Alexander L.; Arik, Metin; Marchal, Christian B.; Yarman, Ozan; Ozaydin, Fatih; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
We examine how Lorentz Symmetry (LS) breaks down in Yarman-Arik-Kholmetskii (YARK) theory of gravitation through an entirely different mechanism than that under metric theories of gravity. Said mechanism can be right away extended to all other fields of interaction under Yarman's Approach that forms the basis of YARK theory. The result is the disclosure of a new "Generalized Lorentz Group" of space-time transformations which contains an additional parameter denoting the interactional energy per unit mass. Hence, the core finding herein is that the Minkowskian metric for an empty space-time should, when one is in the presence of gravity or any other force field, be replaced by general equalities involving a novel coupling parameter for either attraction or repulsion..
Citation Count: 45
A Mossbauer experiment in a rotating system on the second-order Doppler shift: confirmation of the corrected result by Kundig
(Iop Publishing Ltd, 2009) Yarman, Nuh Tolga; Yarman, Tolga; Missevitch, Oleg V.; Rogozev, Boris I.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
We present the results of a Mossbauer experiment in a rotating system, whose performance was stimulated by our recent findings (2008 Phys. Scr. 77 035302) and which consisted of the fact that a correct processing of Kundig's experimental data on the subject gives an appreciable deviation of a relative energy shift Delta E/E between emission and absorption resonant lines from the standard prediction based on the relativistic dilation of time (that is, Delta E/E = -v(2)/2c(2) to the accuracy c(-2), where v is the tangential velocity of the absorber of resonant radiation, and c is the velocity of light in vacuum). That is, the Kundig result we have corrected becomes Delta E/E = -k(v(2)/c(2)), with k = 0.596 +/- 0.006 (instead of the result k = 0.5003 +/- 0.006, originally reported by Kundig). In our own experiment, we carried out measurements for two absorbers with a substantially different isomer shift, which allowed us to make a correction of the Mossbauer data regarding vibrations in the rotor system at various rotational frequencies. As a result, we obtained the overall estimation k = 0.68 +/- 0.03.
Citation Count: 28
Mossbauer experiments in a rotating system on the time dilation effect
(Academic Journals, 2011) Yarman, Nuh Tolga; Yarman, Tolga; Missevitch, Oleg V.; Rogozev, Boris I.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
In this contribution, we analyze both the old Mossbauer experiments in a rotating system and our new experiment on this subject, which unambiguously indicate the presence of an additional component in the relative energy shift Delta E/E between emission and absorption lines, as compared with the classic relativistic expression written to the accuracy c(-2) (that is Delta E/E=-u(2)/2c(2), where u is the tangential velocity of absorber, and c the light velocity in vacuum). The additional dilation of time for the rotating absorber constitutes more than 20% from the relativistic value, and it many times exceeds the measuring uncertainty. We discuss a possible origin of this effect and the ways of its further experimental verification.
Citation Count: 2
Note on Faraday's law and Maxwell's equations
(Iop Publishing Ltd, 2008) Yarman, Nuh Tolga; Missevitch, Oleg V.; Yarman, Tolga; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
We generalize the approach developed by us for the evaluation of the total time derivative of circular integral (Kholmetskii A L et al 2008 Eur. J. Phys. 29 L1-4) and derive an explicit expression for the total time derivative of the area integral for a differentiable vector field. On the basis of this expression, we prove for the first time that Faraday's law can be directly obtained from the Maxwell equations del x E = -delta B/delta t, del center dot B = 0 and the Lorentz force law.
Citation Count: 5
On 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) Yarman, Nuh Tolga; Yarman, Tolga; Yarman, Ozan; Arik, Metin; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
We 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.
Citation Count: 2
Pure bound field corrections to the atomic energy levels and the proton size puzzle
(Canadian Science Publishing, 2014) Yarman, Nuh Tolga; Missevitch, Oleg V.; Yarman, Tolga; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
Reinforcement of the puzzle about the proton charge radius, r(E), stimulated by the recent experiment with muonic hydrogen (Antognini et al. Science, 339, 417 (2013)) induced new discussions on the subject, and now some physicists are ready to adopt the exotic properties of the muon, lying beyond the Standard Model, to explain the difference between the results of muonic hydrogen experiments (r(E) = 0.840 87(39) fm) and the CODATA-2010 value r(E) = 0.8775(51) fm based on electron-proton scattering and hydrogen spectroscopy. In the present contribution we suggest a way to achieve progress in the entire problem via paying attention on some logical inconsistency of fundamental equations of atomic physics, constructed by analogy with corresponding classical equations without, however, taking into account the purely bound nature of electromagnetic fields generated by the electrically bound particles in stationary energy states. We suggest eliminating this inconsistency via introducing some appropriate correcting factors into these equations, which explicitly involve the requirement of total momentum conservation in the system "bound particles and their fields" in the absence of electromagnetic radiation. We further show that this approach allows us not only to eliminate long-standing discrepancies between theory and experiment in the precise physics of simple atoms, but also yields the same estimation ( though with different uncertainties) for the proton size in the classic 2S-2P Lamb shift in hydrogen, 1S Lamb shift in hydrogen, and 2S-2P Lamb shift in muonic hydrogen, with the mean value rE = 0.841 fm. Finally, we suggest the crucial experiment for verification of the validity of pure bound field corrections: the measurement of decay rate of bound moun in various meso-atoms, especially at large Z, where the standard calculations and our predictions essentially deviate from each other, and some of the available experimental results (Yovanovitch. Phys. Rev. 117, 1580 ( 1960)) strongly support our approach.
Citation Count: 7
Radiation from an accelerating neutral body: The case of rotation
(Springer Heidelberg, 2013) Yarman, Nuh Tolga; Arik, Metin; Kholmetskii, Alexander L.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
When an object is bound at rest to an attractional field, its rest mass (owing to the law of energy conservation, including the mass and energy equivalence of the Special Theory of Relativity) must decrease. The mass deficiency coming into play indicates a corresponding rest energy discharge. Thus, bringing an object to a rotational motion means that the energy transferred for this purpose serves to extract just as much rest mass (or similarly "rest energy", were the speed of light in empty space taken to be unity) out of it. Here, it is shown that during angular acceleration, photons of fundamental energy h pi/2 pi are emitted, while the object is kept on being delivered to a more and more intense rotational accelerational field, pi being the instantaneous angular velocity of the rotating object. This fundamental energy, as seen, does not depend on anything else (such as the mass or charge of the object), and it is in harmony with Bohr's Principle of Correspondence. This means at the same time, that emission will be achieved, as long as the angular velocity keeps on increasing, and will cease right after the object reaches a stationary rotational motion (a constant centrifugal acceleration), but if the object were brought to rotation in vacuum with no friction. By the same token, one can affirm that even the rotation at a macroscopic level is quantized, and can only take on "given angular velocities" (which can only be increased, bit by bit). The rate of emission of photons of concern is, on the other hand, proportional to the angular acceleration of the object, similarly to the derivative of the tangential acceleration with respect to time. It is thus constant for a "constant angular acceleration", although the energy h pi/2 pi of the emitted photons will increase with increasing pi, until the rotation reaches a stationary level, after which we expect no emission -let us stress-if the object is in rotation in vacuum, along with no whatsoever friction (such as the case of a rotating diatomic molecule, for instance). If the object reaches its final state in a given medium, say air, and "friction" is present, such as the case of a dental drill, then energy should keep being supplied to it, to overcome friction, which is present either inside the "inner mechanism of rotation" or in its surroundings. In other words, the object in the latter case, would be constantly subject to a friction force, countering its motion, and tending to make it fall to lower rotational energy states. Any fluctuations in the power supply, on the other hand, will slow down the rotating object, no matter how indiscernibly. The small decrease in the rotational velocity is yet reincreased by restoring the power supply, thus perpetually securing a stationary rotational motion. Thereby, the object in this final state, due to fluctuations in either friction or power supply, or both, shall further be expected to emit a radiation of energy h pi(f)/2 pi, where pi(f) is the final angular velocity of the object in rotation. What is more is that our team has very successfully measured what is predicted here, and they will report their experimental results in a subsequent article. The approach presented here seems to shed light on the mysterious sonoluminescence. It also triggers the possibility of sensing earthquakes due to radiation that should be emitted by the faults, on which the seismic stress keeps increasing until the crackdown. By the same token, also two colliding (neutral) objects are expected to emit radiation.
Citation Count: 3
The relativistic mechanism of the Thomas-Wigner rotation and Thomas precession
(Iop Publishing Ltd, 2020) Yarman, Nuh Tolga; Yarman, Tolga; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
We 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.