Absorber theory for the Einstein equations in the first approximation
Absorber theory for the Einstein equations in the first approximation
A.Yu. Turygin
The validity of absorber theory for the Einstein equations in the first approximation, within the framework of a static model of the Universe, is shown.
Show AbstractResonant transitional scattering in vacuum in the presence of an external electromagnetic field
Resonant transitional scattering in vacuum in the presence of an external electromagnetic field
V.R. Khalilov
It is shown that the probability of scattering (in time $\tau$) of a strong, circularly polarized, electromagnetic wave with frequency doubling, propagating in vacuum in a periodic (in space) external electromagnetic field under difinite conditions, is proportional to $\tau^2$.
Show AbstractNeutral currents in the gage model $SU(3)_f\times U(1)$
Neutral currents in the gage model $SU(3)_f\times U(1)$
M.N. Dubinin
A model of electrically weak interactions satisfying presently known experimental data on the process, taking neutral currents into account, is considered. Two neutral gage bosons with masses of the same order are introduced in the model.
Show AbstractInfluence of the domain structure of the magnetostatic-oscillation spectrum of a ferrite plate
Influence of the domain structure of the magnetostatic-oscillation spectrum of a ferrite plate
S.A. Vyzulin, S.A. Kirov, N.E. Syr'ev
The resonant frequencies of long-wave magnetostatic oscillations are calculated theoretically for a plate of a cubic magnet $(K_1<0)$ with a two-phase domain structure in the case of magnetization along the axis [110]. In the range 0.4-1.85 GHz, the spectrum of a YIG plate was investigated experimentally. Good agreement of theory and experiment is obtained both in the saturation region and in the field range where there is two-phase plate domain structure.
Show AbstractHigh multiplicity interaction in photoemulsion
High multiplicity interaction in photoemulsion
V.A. Sobinyakov, Ch.A. Tretjakova, V.Ya. Shestoperov
We present the results of measurements of angles of 527 relativlstic particles which are created in the interaction of an aluminum nucleus with the nucleus of the photoemulsion.
Show AbstractUltrahigh-energy cosmic rays
Ultrahigh-energy cosmic rays
S.N. Vernov, G.B. Khristiansen
We present the results of a study of the primary very-high-energy cosmic radiation carried out at the Moscow State University and in Yakutsk. We briefly explain the new methods which were realized at these establishments. Particular attention is given to the results on the high energy spectrum of primary cosmic radiation in the interval of energies 10$^{15}$-10$^{19}$ eV. We discuss the role of galactic cosmic rays of metagalactic origin, and also new mechanisms which ensure the acceleration of particles to energy of the order or more than 10$^{19}$ eV.
Show AbstractMetastable electron states in doped alloys Pb$_{1-x}$Sn$_{x}$Te
Metastable electron states in doped alloys Pb$_{1-x}$Sn$_{x}$Te
B.A. Akimov, N.В. Brandt, L.I. Ryabova
We present the results of an Investigation of nonequilibrium states and long-lived relaxation processes which occur in doped alloys Pb$_{1-x}$Sn$_{x}$Te at temperatures T≤20К when the system is brought, our of equilibrium by a quantizing magnetic field, IR illumination, or by a strong electric field. The obtained results Indicate that the energy spectrum of the alloys studied here contain electron metastable states.
Show AbstractOn the variation of e/m ratio in five-dimentional field theory
On the variation of e/m ratio in five-dimentional field theory
Yu.S. Vladimirоv, V.V. Кislоv
We present the main equations of the unified five-dimensional theory of gravitation, electromagnetism and scalar field. We discussed one of the consequences of the theory, namely the dependence of the ratio of the electric charge to the mass of a probe particle, on the value of the fundamental scalar field in a given point. This last quantity is determined by the solution of the system of Einstein, Maxwell and Klein -Рок equations. In particular, this field changes in the sun-Earth system for an observer on the earth, as a result of the ellopticity of the Earth's orbit. We obtained a formula which describes the change of e/m. We present data on the measurement of the Josephson frequency ω$_{J}$= 2e/h, which show a dependence on the time of year (the distance from the Earth to the sun), which makes it desirable to carry out direct experiments to test the stability of the ratio e/m.
Show AbstractExtention of convergation region of iterative method for the inverse problem of refraction
Extention of convergation region of iterative method for the inverse problem of refraction
S.V. Baykov, V.A. Burov, A.A. Gоrуunоv, A.V. Saskоvets
We consider the determination of the inhomogeneity of the velocity of propagation of waves in a medium, from the data on the field scattered from this inhomogeneity. We present a multistage iteration algorithm for the solution of the problem which is free from limitations of the region of convergence, and can also be used for scattering from strong inhomogeneity for which the scattered field exceeds the incident field. This extension of the region of convergence is achieved by solving only a small fraction of -the scattered field at each stage, and the obtained Intermediate estimates of the inhomogeneity are used in the calculation of the Green function for the following iteration stage. A computer experiment is used to illustrate the results.
Show AbstractOn the ultimate accuracy of gravity gradients measurements
On the ultimate accuracy of gravity gradients measurements
V.S. Nazarenkо
We consider the static, dynamic and modulation methods of measurement of the second derivatives of the gravitational potential by using a high-quality mass-quadrupole oscillator. It is assumed that the useful signal is masked by the noise of the displacement indicator, or by the Brownian oscillations of the oscillator. We present algorithms for the analysis of the output signals which correspond to the method of maximum of a probability function, and we obtain formulae for the dispersion of estimates of the second derivatives of the potential,i.e., for the instrumental and thermal limits of accuracy of various methods of measurements. The obtained results make it possible to make conclusions about the advantages of the modulation method.
Show Abstract