Effect of the guiding magnetic field on radiation of multi-wave Cherenkov oscillator
Effect of the guiding magnetic field on radiation of multi-wave Cherenkov oscillator
V.A. Cherepenin, V.N. Kornienko
Methods of computer simulation were used for investigating of the effect of the guiding magnetic field on the characteristics of the radiation pulse of the multi-wave Cerenkov generator. It is shown that the dependence of the maximum radiation power of the value of the magnetic field is resonant.
Show AbstractEffect of focusing magnetic field on the interaction between the relativistic electron beam and the microwave field in relativistic overmoded periodic waveguide-based generator
Effect of focusing magnetic field on the interaction between the relativistic electron beam and the microwave field in relativistic overmoded periodic waveguide-based generator
A.I. Slepkov, O.V. Gallyamova, A.I. Schelkonogov
The results of numerical simulation of the interaction between the relativistic electron beam focused by constant magnetic field and the field of an axisymmetric overmoded periodic waveguide are reported. Cyclotron resonant signal amplification and cyclotron absorbtion ranges were revealed, the dynamics of beam electrons was studied, as well as the role of beam parameters that affect the cyclotron resonance.
Show AbstractInteraction of a probe optical signal with quasi-periodic sequence powerful pumping pulses
Interaction of a probe optical signal with quasi-periodic sequence powerful pumping pulses
T.A. Voytova$^1$ , A.V. Yulin$^1$, A.P. Sukhorukov$^2$
The interaction of a short optical pulse with refractive index lattice induced in the nonlinear medium by the pulsed quasi-periodic structures at similar frequencies is considered. The results of numerical simulation of reflection, transmission, multiplexing signal pulse into several sub-pulses for different induced gratings are presented.
Show AbstractPeriod-doubling bifurcation in semiconductor superlattice under the influence of the titled magnetic field
Period-doubling bifurcation in semiconductor superlattice under the influence of the titled magnetic field
А.G. Balanov$^2$, А.А. Koronovskii$^{1,3}$, О.I. Moskalenko$^{1,3}$, А.О. Selskii$^{1,3}$, А.Е. Hramov$^{1,3}$
The semiconductor superlattice is the composite nanostructure used for the generation and the control of the high-frequency oscillations. At present time, attention of the researchers is attracted to the nonlinear dynamics of the electron domains at present nanostructures. In this paper the period-doubling bifurcation phenomena in the semiconductor superlattice under the influence of the titled magnetic field for different temperatures is described.
Show AbstractMethod of optical registration of acoustic field in liquids
Method of optical registration of acoustic field in liquids
L.I. Gilfanova$^{1}$ , S.A. Tsysar$^1$ , P.V. Yuldashev$^1$, V.D. Svet$^2$
The main aim is to develop a method for calculating the structure of the wave field in a heterogeneous medium of skull bone. Phantoms of cranial bones were created and measurement techniques of their acoustic parameters were developed. Principal ultrasonic reconstruction of the real skull bone profile was accomplished.
Show AbstractThe quantum analog of zeta-function and spector of masses for the alternating zeta-function field theory
The quantum analog of zeta-function and spector of masses for the alternating zeta-function field theory
A.O. Shishanin
In the present work we consider the quantum analogue of Riemann’s zeta-function and its alternating version. Formulas for representation of zeta-functions in the form of a functional series and values in the negative integral points are given. For classical limit are obtained known results. We consider field theory for kinetic term with quantum alternating zeta-function and discuss mass spectrum here.
Show AbstractOn the Rutherford--Bohr model of the atom
On the Rutherford--Bohr model of the atom
A.V. Borisov
We give a detailed analysis of two fundamental papers by E. Rutherford (1911) and N. Bohr (1913) where basics of the theory of atomic structure and spectra were developed. We show what influence these works exerted on the development of modern physics.
Show AbstractMaslov Complex Germ Method for Scalar Electrodynamics
Maslov Complex Germ Method for Scalar Electrodynamics
O.Yu. Shvedov
The main notions of semiclassical scalar electrodynamics are discussed. Different approaches for quantizing scalar electrodynamics are considered. These are Couloumb gauge quantization, refined algebraic quantization and Gupta-Bleuler (or BRST-BFV) quantization. In the semiclassical theory, set of all semiclassical states are viewed as a bundle. The base of the bundle is considered as an extended phase space of the corresponding classical theory. Fibres are quantum states in external background. Semiclassical observables are expressed via differential 1-forms on the extended phase space.
Show AbstractTwo-proton radioactivity
Two-proton radioactivity
Ishkhanov B. S.
Two-proton radioactivity was predicted for even-Z nuclei for which due to the pairing force one proton emission is energetically forbidden. The two-proton emission is essentially governed by the Coulomb and centrifugal barriers. Two-proton radioactivity is sensitive to nuclear structure and emission process itself. A model which treats the emission dynamics reasonably well is the three-body model.
Show AbstractUnfolding of anisotropic flow parameters in event-by-event analysis of heavy ion collisions
Unfolding of anisotropic flow parameters in event-by-event analysis of heavy ion collisions
E.N. Nazarova
In this review a new method of studying event-by-event distributions of azimuthal anizotropy of particles in heavy ion collisions introduced by ATLAS collaboration is discussed, as well as the analysis of distributions obtained by the method of approximation to true event-by-event distributions (Unfolding method). It is shown, that considered method of analysis is an effective tool for studying anizotropic flow fluctuations
Show Abstract