Browsing by Author "Missevitch, O. V."

Now showing 1 - 20 of 22

Citation Count: 2
Classical electrodynamics in material media and relativistic transformation of magnetic dipole moment
(Springer Heidelberg, 2016) Yarman, Nuh Tolga; Missevitch, O. V.; Yarman, T.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
We consider the relativistic transformation of the magnetic dipole moment and disclose its physical meaning, shedding light on the related difficulties in the physical interpretation of classical electrodynamics in material media.
Citation Count: 4
Comment on 'Correct interpretation of two experiments on the transverse Doppler shift'
(Iop Publishing Ltd, 2014) Yarman, Nuh Tolga; Missevitch, O. V.; Yarman, T.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
We disclose a number of errors in the paper by Zanchini (2012 Phys. Scr. 86 015004) in his attempt to re-interpret the Mossbauer experiments in rotating systems and to put in doubt the reality of the time dilation effect in special relativity. We show that the common interpretation of this kind of experiment is quite correct and once more pay attention to the presence of an additional (to the relativistic dilation of time) component to the relative energy shift between emission and absorption lines detected in our recent experiment on this subject.
Citation Count: 8
Continuity equations for bound electromagnetic field and the electromagnetic energy-momentum tensor
(Iop Publishing Ltd, 2011) Yarman, Nuh Tolga; Missevitch, O. V.; Yarman, T.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
We analyze the application of the Poynting theorem to the bound (velocity-dependent) electromagnetic (EM) field and show that an often-used arbitrary elimination of the term of self-interaction in the product j.E (where j is the current density and E the electric field) represents, in general, an illegitimate operation, which leads to incorrect physical consequences. We propose correct ways of eliminating the terms of self-interaction from the Poynting theorem to transform it into the form that is convenient for problems with bound EM field, which yield the continuity equations for the proper EM energy density, the interaction part of EM energy density and the total EM energy density of bound fields, respectively. These equations indicate the incompleteness of the common EM energy-momentum tensor, and in our analysis, we find a missed term in its structure, which makes its trace non-vanished. Some implications of these results are discussed, in particular, in view of the notion of EM mass of charged particles.
Citation Count: 3
Electromagnetic energy of electric and magnetic dipoles
(Canadian Science Publishing, 2013) Yarman, Nuh Tolga; Missevitch, O. V.; Yarman, T.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
We derive a novel expression for the relativistic energy of electric and magnetic dipoles in an external electromagnetic field and discuss its implications. In particular, we find the relativistic dependence of the energy of a dipole on its velocity, v, and show that in the most convenient presentation of the energy (when the proper electric (p(o)) and magnetic (m(o)) dipole moments are involved, whereas the electric (E) and magnetic (B) fields are defined in the laboratory frame), its value essentially depends on the orientation of the velocity, v, with respect to vectors p(o), E, and m(o), B. To better understand the relativistic behavior of the energy of electric and magnetic dipoles, we introduce the notion of "latent" momentum of an electric dipole, in addition to the known concept of "hidden" momentum of a magnetic dipole. We finally show that the contribution of energy terms related to "hidden" and "latent" momenta of an electric or magnetic dipole is important in the relativistic case.
Citation Count: 10
Energy-momentum conservation in classical electrodynamics and electrically bound quantum systems
(Iop Publishing Ltd, 2010) Yarman, Nuh Tolga; Missevitch, O. V.; Yarman, T.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
We call attention to the well-known fact that the electromagnetic (EM) field consists of bound and radiation components, and only their sum provides for the implementation of energy-momentum conservation for interacting classical charges. In this context, we then focus our attention on quantum systems of electrically bound charges, which do not radiate in the stationary energy states and thus their EM field comprises only the bound component. The non-applicability of Maxwell's equations to quantum mechanics does not permit, in general, ignoring the problem of recovering the energy-momentum conservation for such pure bound EM field systems, and we explore this problem within the Schrodinger-Dirac quantization scheme.
Citation Count: 6
Force on an electric/magnetic dipole and classical approach to spin-orbit coupling in hydrogen-like atoms
(Academic Press inc Elsevier Science, 2017) Yarman, Nuh Tolga; Missevitch, O. V.; Yarman, T.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
We carry out the classical analysis of spin-orbit coupling in hydrogen-like atoms, using the modern expressions for the force and energy of an electric magnetic dipole in an electromagnetic field. We disclose a novel physical meaning of this effect and show that for a laboratory observer the energy of spin-orbit interaction is represented solely by the mechanical energy of the spinning electron (considered as a gyroscope) due to the Thomas precession of its spin. Concurrently we disclose some errors in the old and new publications on this subject. (C) 2017 Elsevier Inc. All rights reserved.
Citation Count: 10
Going from classical to quantum description of bound charged particles I: Basic concepts and assertions
(Springer Heidelberg, 2011) Yarman, Nuh Tolga; Yarman, T.; Missevitch, O. V.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
In this paper we analyze again a transition from the classical to quantum description of bound charged particles, which involves a substantial modification of the structure of their electromagnetic (EM) fields related to the well-known fact that bound micro-particles do not radiate in stationary energy states. We show that a simple exclusion of the radiative component of the EM field produced by bound particles leads to a violation of the energy-momentum conservation law, if the non-radiative EM field is left unmodified. In order to restore the energy-momentum conservation, we take a closer look at the interaction of two hypothetical classical charges with the prohibited radiation component of their EM field and bring the appropriate modifications in the structure of their bound EM field and, accordingly, in the Hamilton function of this system. In comparison with the common Hamilton function for the one-body problem, the electric interaction energy is multiplied by the Lorentz factor of orbiting charged particle, and its rest mass m is replaced by an effective rest mass parameter, which includes the interaction EM energy. We introduce, as a novel postulate, these replacements into the Dirac equation for the bound electron and show that the solution of the modified Dirac-Coulomb equation gives the same gross and fine structure of energy levels, as the one furnished by the conventional approach, for hydrogenlike atoms. The correction to spin-spin splitting of 1S-state of hydrogen and heavier atoms is much smaller than nuclear structure contribution and can be ignored. However, as discussed in part II of this paper, our approach does induce corrections to the energy levels at the scale of hyperfine interactions, which at once remove a number of long-standing discrepancies between theory and experiment in the atomic physics.
Citation Count: 9
Going from classical to quantum description of bound charged particles II: Implications for the atomic physics
(Springer Heidelberg, 2011) Yarman, Nuh Tolga; Yarman, T.; Missevitch, O. V.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
This paper is the continuation of the analysis of bound quantum systems started in part I (A. L. Kholmetskii, T. Yarman and O.V. Missevitch, Going from classical to quantum description of bound charged particles. I: Basic concepts and assertions), which is based on a novel approach to the transition from classical to quantum description of electrically bound charges, involving the requirement of energy-momentum conservation for the bound electromagnetic (EM) field, when the EM radiation is forbidden. It has been shown that the modified expression for the energy levels of hydrogenic atoms within such a pure bound field theory (PBFT) provides the same gross and fine structure of energy levels, like in the standard theory. At the same time, at the scale of hyperfine interactions, our approach, in general, does evoke some important corrections to the energy levels. Part of such corrections, like the spin-spin splitting in the hydrogen atom, is less than the present theoretical/experimental uncertainties in the evaluation of hyperfine contributions into the atomic levels. But the most interesting result is the appearance of a number of significant corrections (the 1S-2S interval and 1S spin-spin interval in positronium, 1S and 2S-2P Lamb shift in light hydrogenic atoms), which improve considerably the convergence between theoretical predictions and experimental results. In particular, the corrected 1S-2S interval and 1S spin-spin splitting in positronium practically eliminate the existing up-to-date discrepancy between theoretical and experimental data. The re-estimated classic 2S-2P Lamb shift as well as ground-state Lamb shift in the hydrogen atom lead to the proton charge radius r(p) = 0.841(6) fm (from 2S-2P Lamb shift), and r(p) = 0.846(22) fm (from 1S Lamb shift), which perfectly agrees with the latest estimation of proton size via the measurement of 2S-2P Lamb shift in muonic hydrogen, i.e. r(p) = 0.84184(67) fm. Finally, we consider the decay of bound muons in meso-atoms and achieve a quantitative agreement between experimental data and the results obtained through our approach.
Citation Count: 43
Kundig's experiment on the transverse Doppler shift re-analyzed
(Iop Publishing Ltd, 2008) Yarman, Nuh Tolga; Yarman, T.; Missevitch, O. V.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
In this paper, we re-analyze the ingenious experiment by Kundig ( measurement of the transverse Doppler shift by means of the Mossbauer effect) and show that a correct processing of experimental data gives a relative energy shift 1 E) E of the absorption line different from the value of classically assumed relativistic time dilation for a rotating resonant absorber. Namely, instead of the relative energy shift Delta E/E = -( 1(0065 +/- 0(011) v(2)/2c(2) reported by Kundig ( v being the linear velocity of absorber and c being the light velocity in vacuum), we derive from his results Delta E/E = -( 1(192 +/- 0.011) v(2)/2c(2). We are inclined to think that the revealed deviation of Delta E/E from relativistic prediction cannot be explained by any instrumental error and thus represents a physical effect. In particular, we assume that the energy shift of the absorption resonant line is induced not only by the standard time dilation effect, but also by some additional effect missed at the moment, and related perhaps to the fact that resonant nuclei in the rotating absorber represent a macroscopic quantum system and cannot be considered as freely moving particles.
Citation Count: 3
Mossbauer experiment in a rotating system: The change of time rate for resonant nuclei due to the motion and interaction energy
(Soc Italiana Fisica, 2009) Yarman, Nuh Tolga; Yarman, T.; Missevitch, O. V.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
We verify a hypothesis suggested by the second co-author: the universality for all kinds of interactions change of time rate for any particles/objects as a function of their binding energy, which occurs in addition to relativistic dilation of time. In laboratory scale experiments, this effect can be checked by means of the Mossbauer effect with a resting resonant source and rotating resonant absorber (or vice versa). For the resonant nuclei bound in the solid-state absorber, coupled to a rotor, the additional change of time rate is expected. Correspondingly, an excess of relative energy shift Delta E/E between emission and absorption lines over the relativistic value Delta E/E approximate to -u(2)/2c(2) for freely moving objects is expected. We thus reanalyze the known Mossbauer experiments in rotating systems and show that their results are well fitted into the expression Delta E/E = -k(u(2)/c(2)), with however the coefficient k > 0.5. We describe our own experiment on the subject, where we have measured k = 0.68 +/- 0.03. The result obtained is discussed.
Citation Count: 0
Mssbauer Experiments in Rotating Systems and Iso Red/Blue Shift
(Amer inst Physics, 2012) Yarman, Nuh Tolga; Yarman, T.; Missevitch, O. V.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
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. This effect cannoe be explained by common relativity theory and thus it should be considered as the experimental confirmation of the Santilli iso red/blue shift in rotating systems.
Citation Count: 15
Novel Mossbauer experiment in a rotating system and the extra-energy shift between emission and absorption lines
(Canadian Science Publishing, 2016) Yarman, Nuh Tolga; Kholmetskii, A. L.; Arik, M.; Akkus, B.; Oktem, Y.; Susam, L. A.; Missevitch, O. V.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
We present the results of a novel Mossbauer experiment in a rotating system, implemented recently at 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 Delta E/E = ku(2)/c(2). This result turned out to be in quantitative agreement with an experiment achieved earlier on the subject matter (Kholmetskii et al. Phys. Scr. 79, 065007 (2009)), and once again strongly pointed to the inequality k > 0.5, revealed originally in (Kholmetskii et al. Phys. Scr. 77, 035302 (2008)) via the re-analysis of Kundig's experiment (Kundig, Phys. Rev. 129, 2371 (1963)). A possible explanation of the deviation of the coefficient k from the relativistic prediction k = 0.5 is discussed.
Citation Count: 15
Novel Mossbauer Experiment in a Rotating System: Extra Energy Shift Confirmed
(Amer inst Physics, 2015) Yarman, Nuh Tolga; Yarman, T.; Arik, M.; Missevitch, O. V.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
We report the result of a novel Mossbauer experiment in a rotating system, implemented in Istanbul University, which yields the coefficient k=0.69-0.02 in the expression for the relative energy shift between emission and absorption lines Delta E/E=ku(2)/c(2). This result is in a quantitative agreement with a recent experiment on the same subject (A.L. Kholmetskii, et al., Phys. Scr. 79, 065007 (2009)) and strongly supports the inequality k>0.5, revealed at the first time in (A. L. Kholmetskii, et al., Phys. Scr. 77, 035302 (2008)) via the re-analysis of Kundig experiment (W. Kundg, Phys. Rev. 129, 2371 (1963). Possible explanation of the deviation of the coefficient k from the relativistic prediction k=0.5 is discussed.
Citation Count: 11
On the classical analysis of spin-orbit coupling in hydrogenlike atoms
(Amer Assoc Physics Teachers, 2010) Yarman, Nuh Tolga; Missevitch, O. V.; Yarman, T.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
We reanalyze the usual classical derivation of spin-orbit coupling in hydrogenlike atoms. We point out the presence of an additional force exerted on a spinning electron due to the appearance of its electric dipole moment in the rest frame of the nucleus. This force has been ignored, although its inclusion in the electron's equation of motion influences the energy level of an orbiting electron on an equal footing with other effects in the usual analysis of spin-orbit coupling. A fortuitous cancellation between two terms leaves the overall energy level unaffected, which explains in part why this effect has been overlooked. An account of this effect in the Bohr model produces the usual expression for the spin-orbit coupling but with different radii of the electron's orbit for different spatial orientations of the electron's spin. This result is in qualitative agreement with the solution of the Dirac-Coulomb equation for hydrogenlike atoms.
Citation Count: 6
PROPAGATION OF ELECTROMAGNETIC FIELDS IN NEAR AND FAR ZONES: ACTUALIZED APPROACH WITH NON-ZERO TRACE ELECTRO-MAGNETIC ENERGY-MOMENTUM TENSOR
(Electromagnetics Acad, 2012) Yarman, Nuh Tolga; Missevitch, O. V.; Smirnov-Rueda, R.; Yarman, T.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
The present work is motivated by our recent experimental results [2-4] that indicate on anomalously small retardation of bound (or velocity-dependent) electromagnetic (EM) fields in the near zone of an emitter, whereas in the far zone the retardation tends to the standard value determined by the velocity of light c. Such anomaly is specific only for bound field component, while EM radiation has the constant propagation velocity c in the entire space. One possible explanation of these experimental results can be linked to our earlier finding [6, 8] that conventional EM energy-momentum (EMEM) tensor describes bound and radiative EM fields only in spatial regions free of charges and currents. In this work we show that an additional term has to be included into the standard EMEM tensor in order to make viable the description of the whole system of "charges plus fields". Such approach to the EMEM tensor actually admits anomalously small retardation of bound EM fields in regions very close to a field source, providing the standard propagation in the far zone. Some special implications are also discussed.
Citation Count: 0
Propagation Properties of Bound Electromagnetic Field: Classical and Quantum Viewpoints
(Springer, 2020) Yarman, Nuh Tolga; Missevitch, O. V.; Yarman, T.; Smirnov-Rueda, R.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
The present work is motivated by recent experiments aimed to measure the propagation velocity of bound electromagnetic (EM) field (Missevitch, et al. in EPL 93:64004, 2011; de Sangro et al. in Eur Phys J C 75:137, 2015) that reveal no retardation in the absence of EM radiation. We show how these findings can be incorporated into the mathematical structure of special relativity theory that allows us to reconsider some selected problems of classical and quantum electrodynamics. In particular, we come to the conclusion that the total four-momentum for a classical system "particles plus fields" ought to be a present state function of moving charges if EM radiation is negligible. In quantum domain, we analyze novel definition of the momentum operator recently suggested in the study of quantum phase effects (Kholmetskii et al. in Sci. Rep. 8:11937, 2018). It implies that bound EM field energy and momentum are to be present state functions, too. Being in agreement with reported experiments, these conclusions suggest the necessity to carry out more precise experimental verifications for additional and independent determination of propagation properties of bound EM fields. A scheme of a possible experiment on this subject is also proposed.
Citation Count: 14
Pure Bound Field theory and the Decay of Moun in Meso-Atoms
(Springer/plenum Publishers, 2011) Yarman, Nuh Tolga; Kholmetskii, A. L.; Missevitch, O. V.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
In the present paper we consider the electrically bound quantum particles within the framework of pure bound field theory (PBFT) (Kholmetskii, A.L., et al.: Phys. Scr. 82, 045301 (2010)), which explicitly takes into account the non-radiative nature of electromagnetic (EM) field generated by bound charges in the stationary energy states, and evokes the appropriate modifications of bound EM field, which secure the total momentum conservation law for the isolated system "electron plus nucleus" in the absence of EM radiation. Such a PBFT gives the same gross as well as fine structure of atomic energy levels, as those furnished by the common approach, but implies a scaling transformation of radial coordinates. In this paper we find out that in the classical limit this transformation reflects the dependence of time rate for the orbiting electron on the electric potential of the binding EM field in addition to relativistic dependence on its Lorentz factor. We show that this effect completely eliminates the available up to date discrepancy between calculated and experimental data on the decay rate of bound muon in meso-atoms. We emphasize that the revealed dependence of time rate of quantum electrically bound particles on the electric potential represents the specific effect of PBFT, and, in general, is not extended to the classical world.
Citation Count: 9
Quantum phases for moving charges and dipoles in an electromagnetic field and fundamental equations of quantum mechanics
(Nature Portfolio, 2018) Yarman, Nuh Tolga; Yarman, T.; Missevitch, O. V.; Arik, M.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
We analyze the quantum phase effects for point-like charges and electric (magnetic) dipoles under a natural assumption that the observed phase for a dipole represents the sum of corresponding phases for charges composing this dipole. This way we disclose two novel quantum phases for charged particles, which we named as complementary electric Aharonov-Bohm (A-B) phase and complementary magnetic A-B phase, respectively. We reveal that these phases are derived from the Schrodinger equation only in the case, where the operator of momentum is re-defined via the replacement of the canonical momentum of particle by the sum of its mechanical momentum and interactional field momentum for a system of charged particles. The related alteration should be introduced to Klein-Gordon and Dirac equations, too, and implications of this modification are discussed.
Citation Count: 4
Quantum phases for point-like charged particles and for electrically neutral dipoles in an electromagnetic field (vol 392, 49, 2018)
(Academic Press inc Elsevier Science, 2021) Yarman, Nuh Tolga; Missevitch, O. V.; Yarman, T.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
[No Abstract Available]
Citation Count: 2
Redefinition of the energy-momentum operator: motivation and implications
(Springer Heidelberg, 2023) Yarman, Nuh Tolga; Yarman, T.; Missevitch, O. V.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
The paper is motivated by our idea to re-define the momentum operator in quantum physics through the sum of mechanical and electromagnetic momenta for the system "charged particle in an electromagnetic field" instead of its canonical momentum, which occurred successful in describing quantum phase effects for charges and dipoles (Kholmetskii et al. in Ann. Phys. 392:49, 2018; Sci. Rep. 8:11,937, 2018). Furthermore, we show how a recently obtained expression for the "point-by-point" quantum phase of a charged particle in the framework of a fully quantized model of the Aharonov-Bohm effect (Marletto and Vedral in Phys. Rev. Lett. 125:040,401, 2020) supports the re-definition of the momentum operator in quantum mechanics from the theoretical side. These results motivated us to re-analyze the fundamental equations of relativistic quantum mechanics with a new energy-momentum operator. In this contribution, we solve the Dirac equation for an electrically bound electron with a new energy-momentum operator and extend the obtained solutions to the precise physics of simple atoms in the form of an effective theory, which does not touch the diagram technique of QED. We find that for majority of problems of precise physics of simple atoms, both definitions of the energy-momentum operator, yield indistinguishable results with modern measurement precision. An important exception is the spectroscopy of ortho-positronium, which occurs crucial in choosing the correct expression for the energy-momentum operator, and it shows that the available measurement data rather support the new definition of this operator.