"Baromagnetism" of planets and stars
"Baromagnetism" of planets and stars
V.I. Grigor'ev
Physical mechanism of formation of magnetic fields of planets and stars associated with differential motions of electric charges in their interior acquired due to the baroelectric effect is considered. This polarization-kinetic mechanism, not discussed previously, allows an understanding, in particular, of how tidal effects cause the noncoincidence of the geographic and magnetic axes of celestial bodies.
Show AbstractOn the existence of Kuiper belt objects bound with Neptune by orbital resonances
On the existence of Kuiper belt objects bound with Neptune by orbital resonances
I.A. Gerasimov, B.R. Mushailov
Based on a restricted elliptic three-body problem with due account of secular perturbations caused by Uranus, Saturn, and Jupiter, we have evaluated the orbits and regions of stable existence for Transneptune objects that are in orbital commensurability with Neptune.
Show AbstractEffect of water adsorption on the impedance of silicon-porous silicon-metal structures
Effect of water adsorption on the impedance of silicon-porous silicon-metal structures
S.N. Kozlov, A.N. Nevzorov, A.A. Petrov
The effect of water adsorption on the conductivity and the capacity of siliconporous silicon-metal structures has been studied in the frequency range from $10^2$ to $2\cdot10^3$ Hz. It was demonstrated that the sensitivity (as regards the impedance) of the structures studied to the water adsorption effect is maximal in the frequency range from a few hundred Hz to 1 kHz.
Show AbstractInteraction between microwaves and semiconductor wafer-mirror structure
Interaction between microwaves and semiconductor wafer-mirror structure
O.G. Koshelev, E.A. Forsh
The interference of microwaves in a structure composed of a weakly absorbing wafer, an air gap, and a mirror has been analyzed in a contact less fashion with a view to determining conductivity inhomogeneities in the wafer thickness. It is demonstrated that measuring the reflection coefficient of such a structure at a certain wavelength and an air gap values makes it possible to find the approximate values of the Fourier expansion coefficients of the wafer.
Show AbstractAnomalous kinetics of Stabler-Wronski effect in high-resistance $a$-Si:H layers weakly doped with boron
Anomalous kinetics of Stabler-Wronski effect in high-resistance $a$-Si:H layers weakly doped with boron
I.A. Kurova, N.N. Ormont, A.L. Gromadin
An anomalous nonmonotonic kinetics of the Stabler-Wronski effect has been discovered for an $a$-Si:H film weakly doped with boron, whose Fermi level was situated near the middle of the forbidden band. Anomalous was the behavior of dark conduction, which was higher than its equilibrium value and exhibited similar nonmonotonic kinetics during and after illumination. The model of formation and relaxation of fast and slow metastable states (broken bonds in silicon and photoactivated boron atoms) was used to show that, after switching off the light, the type of conductivity could change from electronic to hole one, this change being responsible for the anomalous relaxation kinetics.
Show AbstractОбнаружение и распознавание стохастического сигнала в гравитационно-волновом эксперименте при наличии импульсных помех
Обнаружение и распознавание стохастического сигнала в гравитационно-волновом эксперименте при наличии импульсных помех
М.П. Виноградов, А.В. Гусев
Предложен оптимальный алгоритм обнаружения векторного стохастического гравитационного сигнала, представляющего собой профильтрованный пуассоновский процесс с неизвестными амплитудами и случайными моментами возникновения отдельных "вспышек", при наличии хаотических импульсных помех с высокой скважностью.
Show AbstractМодель описания процессов рождения $\pi^{+}\pi^{-}$-пар на протоне реальными и виртуальными фотонами в области энергий возбуждения нуклонных резонансов
Модель описания процессов рождения $\pi^{+}\pi^{-}$-пар на протоне реальными и виртуальными фотонами в области энергий возбуждения нуклонных резонансов
Е.Н. Головач$^1$, В.С. Замиралов$^1$, Б.С. Ишханов$^1$, В.И. Мокеев$^1$, Дж. Рико$^2$, M. Рипани$^2$, Д.А. Родионов$^1$
Предложена модель описания реакций $\gamma_{r,v}p\rightarrow\pi^{+} \pi^{-}p$ под действием реальных и виртуальных фотонов. Модель находится в хорошем согласии с имеющимися экспериментальными данными и может быть использована для обработки результатов новых экспериментов по рождению $\pi^{+}\pi^{-}$-пар на протонах реальными и виртуальными фотонами. В частности, модель может быть применена для нахождения электромагнитных формфакторов нуклонных резонансов.
Show AbstractFoundations of possibility theory. Methods of optimal estimation and decision making. Estimation of fuzzy elements and their distribution parameters
Foundations of possibility theory. Methods of optimal estimation and decision making. Estimation of fuzzy elements and their distribution parameters
Yu.P. Pyt'ev
Methods for optimal estimation of fuzzy elements and their distribution parameters are considered. The methods are based on minimizing the possibility and/or necessity of estimation errors.
Show AbstractError-perturbation and uncertainty relations
Error-perturbation and uncertainty relations
Yu.I. Vorontsov
The relation between the error of coordinate measurements and momentum perturbation has been studied. It has been shown that, with respect to the state of the system after measurement corresponding to the reduction postulate and accepted in quantum theory, this relation is similar to the uncertainty relation only for the initial system state with a minimum product of uncertainties. The obtained relation is shown to be similar to the uncertainty relation for arbitrary initial system states only with respect to a mixture of reduced states.
Show AbstractGenerating equation for Ward identities and anomalies
Generating equation for Ward identities and anomalies
D.A. Slavnov
An equation generating the Ward identities for renormalized Green functions is obtained within the framework of dimensional renormalization along lines with the use of integer dimensions only. The generating functional is developed for anomalies, and the anomaly absence condition is obtained.
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