Influence of the reactive atmosphere during magnetron sputtering on evolution of the phase composition of diamond-like coatings doped with chromium
Influence of the reactive atmosphere during magnetron sputtering on evolution of the phase composition of diamond-like coatings doped with chromium
I. S. Levin$^{1,2}$, V. M. Avdyukhina$^1$, M. M. Khrushchov$^2$, V. A. Schergunov$^2$
In the work, samples of diamond-like carbon coatings doped with chromium, obtained with the help of magnetron sputtering technology in active gas media, were investigated. The influence of the features of coating deposition (first of all, the composition of the sputtering atmosphere) on their phase composition and the fine atomic structure was studied. X-ray diffractometry was used as the main research method.
Show AbstractMethods of accelerated convergence in statistical physics
Methods of accelerated convergence in statistical physics
P. N. Nikolaev
In the work the classification of the methods of accelerated convergence used in statistical physics is given. Among them a combined method using physical analysis of the system and mathematical methods of accelerated convergence is picked out. Its effectiveness is shown for obtaining the Carnahan-Starling equation. The proposed method is of a general nature and is applicable to a wide class of systems.
Show AbstractModern physics in the course "History and methodology of physics"
Modern physics in the course "History and methodology of physics"
P. N. Nikolaev
The principles of the construction the exposition of the modern physics in the course "History and methodology of physics" is investigated. The causal link between the state of modern physics and the content of the course "History and the methodology of physics" has been noted.
Show AbstractAnalysis of information search capabilities in physics: the problem of internet searching on the example of acoustics
Analysis of information search capabilities in physics: the problem of internet searching on the example of acoustics
V. G. Shamaev$^1$, A. B. Gorshkov$^2$, L. G. Guschina$^3$, V. I. Yakimenko$^4$
Problems of online access to scientific information are discussed. Brief information on foreign information retrieval systems is given. The state of information support for Russian-language sources in the USSR and now is described. The absence of a single center for collecting and providing information on Russian-language scientific publications is noted. A scheme is proposed for use in the creation of such a center. A possible cluster of this center is described on the example of acoustic topics, already implemented at the Acoustics Department of the Physics Department of the M.V. Lomonosov Moscow State University. The corresponding portal «Acoustics» (http://akdata.ru) is in the public domain on the Internet. Entrance points of the portal: full-text archive of «Acoustic Journal», «Signaling information» on acoustics and «Information retrieval system. Acoustics. Russian-language sources». Brief description of the work with the system is provided. The developed technologies for the preparation of information resources and the resources themselves constitute a complete system of information support for acoustic research in the Russian-speaking segment. They also make it possible to provide a full reflection of the Russian-language scientific literature for monitoring and expert evaluation of the scientific activities of Russian scientists, which can contribute to strengthening the positive image of Russian sci-ence in the world. Questions of priority and preservation of intellectual property are being raised. It is concluded that only properly organized information support can guarantee the pu-rity and novelty of the scientific results that underlie the research process.
Show AbstractMathematical model of periodic waveguide systems with rectangular cross-section
Mathematical model of periodic waveguide systems with rectangular cross-section
M. I. Svetkin, A. N. Bogolubov, A. I. Erokhin, V. M. Pikunov
A mathematical model of an ideally conducting periodic waveguide system with piecewise constant rectangular cross-section is proposed. This type of geometry is finding application in the development of terahertz devices more often recently. The problem to solve is a system of Maxwell equations supplemented by metal boundary conditions and Floquet conditions on cross-sections spaced by one period of the structure. The solution of the problem is based on incomplete Galerkin's method and projection field conjunction in the region of cross-sections jumps. Direct use of this approach leads to matrix problems with ill-conditioned matrices due to simultaneous presence of exponentially increasing and decreasing matrix coefficients. In this context the method to be proposed additionally takes into account the directions of wave propagation in any regular section in the system, which makes it possible to eliminate exponentially increasing elements and make the matrices well-conditioned. Internal wave reflections occurring within the considering period of the system are taken into account explicitly. Based on the proposed model the dispersion characteristics of various structures are constructed. The convergence of the method to the limiting cases is investigated.
Show AbstractThe relationship between the acceleration of seismic movements of the bottom and variations of bottom pressure
The relationship between the acceleration of seismic movements of the bottom and variations of bottom pressure
V. A. Karpov$^1$, K. A. Sementsov$^1$, H. H. Matsumoto$^2$, Y. Y. Kaneda$^3$
According to the data of deepwater DONET observatories, the relationship between the bottom pressure variations and the acceleration of the bottom fluctuations during the Tohoku 2011 earthquake was investigated. The method of cross-spectral analysis confirmed the existence of a linear relationship between the pressure variations and the vertical acceleration component in the <
About a possible violation of causality as an alternative to the information interpretation of quantum theory
About a possible violation of causality as an alternative to the information interpretation of quantum theory
A. V. Belinsky
This is a review of a very interesting (in the authors' view) phenomenon, the operation of the nonlinear light beam splitter. The beam splitter is a flat interface between two transparent dielectrics, at least one of which exhibits Kerr nonlinearity, i.e., its refractive index depends on the transmitted radiation intensity. Interestingly, quantum and classical theories make directly opposite predictions about the phase fluctuation of the output radiation of this device. Even more interesting is the interpretation of the quantum results, which is reduced to the alternative: either the finding of a violation of the principle of causality in the sense of the impact of events subsequent to the previous or appeal to the information interpretation of quantum theory.
Show AbstractInfluence of models of the atomic nuclei on the estimated cross sections of photoneutron reactions on $^{116}$Sn
Influence of models of the atomic nuclei on the estimated cross sections of photoneutron reactions on $^{116}$Sn
A. A. Kuznetsov$^1$, V. V. Varlamov$^1$, B. S. Ishkhanov$^{1,2}$, V. N. Orlin$^1$, A. A. Prosnyakov$^2$
In this work were obtained estimated cross sections of photoneutron reactions on $^{116}$Sn based on the theoretical-experimental approach. Calculations of the used multiplicity transition fuctions were based on the calculations of combined model of photonucleon reactions and the TALYS program. The Influence of the parameters of selected models on the estimated cross sections of the reactions was evaluated.
Show AbstractEnergy dependence of differential cross sections for particle production at the LHC
Energy dependence of differential cross sections for particle production at the LHC
I. I. Ovcharov$^2$, L. N. Smirnova$^{1,2}$
Analysis of differential spectra of charged particles produced in proton collisions at the center of mass energies √s = 0.9, 2.36, 7, 8 и 13 TeV in dependence on transverse momentum at the LHC is presented. The parameterization of both transverse momentum spectra and their ratios are fulfilled. It is shown that particle spectrum on transverse momentum becomes harder with increase of proton collision energy.
Show AbstractFeatures of the formation and decay of transuranium nuclei formed in reactions with heavy ions
Features of the formation and decay of transuranium nuclei formed in reactions with heavy ions
D. O. Eremenko$^{1,2}$, D. I. Denisova$^1$, V. A. Drozdov$^2$, S. Yu. Platonov$^{1,2}$, O. V. Fotina$^{2,3}$, O. A. Yuminov$^2$
The features of the processes of formation and decay of transuranium nuclei formed in the reactions of complete fusion of heavy ions are analyzed. When analyzing the experimental data for the $^{16}$O+$^{232}$Th, we used quantum-mechanical calculations of the initial distributions for the components of the total angular momentum of the compound nuclei $^{248,247}$Cf and the dynamic ssion model to describe their decay. It is shown that the
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