Renormalized non-modal theory of the kinetic drift instability of plasma shear flows

The linear and renormalized nonlinear kinetic theory of drift instability of plasma shear flow across the magnetic field, which has the Kelvin's method of shearing modes or so-called non-modal approach as its foundation, is developed. The developed theory proves that the time-dependent effect of the finite ion Larmor radius is the key effect, which is responsible for the suppression of drift turbulence in an inhomogeneous electric field. This effect leads to the non-modal decrease of the frequency and growth rate of the unstable drift perturbations with time. We find that turbulent scattering of the ion gyrophase is the dominant effect, which determines extremely rapid suppression of drift turbulence in shear flow

Renormalized theory of the ion cyclotron turbulence in magnetic field--aligned plasma shear flow

The analytical treatment of nonlinear evolution of the shear-flow-modified current driven ion cyclotron instability and shear-flow-driven ion cyclotron kinetic instabilities of magnetic field--aligned plasma shear flow is presented. Analysis is performed on the base of the nonlinear dispersion equation, which accounts for a new combined effect of plasma turbulence and shear flow. It consists in turbulent scattering of ions across the shear flow with their convection by shear flow and results in enhanced nonlinear broadening of ion cyclotron resonances. This effect is found to lead to the saturation of ion cyclotron instabilities as well as to the development of nonlinear shear flow driven ion cyclotron instability. 52.35.RaComment: 21 page

Langmuir wave linear evolution in inhomogeneous nonstationary anisotropic plasma

Equations describing the linear evolution of a non-dissipative Langmuir wave in inhomogeneous nonstationary anisotropic plasma without magnetic field are derived in the geometrical optics approximation. A continuity equation is obtained for the wave action density, and the conditions for the action conservation are formulated. In homogeneous plasma, the wave field E universally scales with the electron density N as E ~ N^{3/4}, whereas the wavevector evolution varies depending on the wave geometry

Evidence for two-gap nodeless superconductivity in SmFeAsO0.8_{0.8}F0.2_{0.2} from point-contact Andreev-reflection spectroscopy

Point-contact Andreev-reflection measurements were performed in SmFeAsO_{0.8}F_{0.2} polycrystals with T_c \simeq 53 K. The experimental conductance curves reproducibly exhibit peaks around \pm 6 mV and shoulders at V \sim 16-20 mV, indicating the presence of two nodeless superconducting gaps. While the single-band Blonder-Tinkham-Klapwijk fit can only reproduce a small central portion of the conductance curve, the two-gap one accounts remarkably well for the shape of the whole experimental dI/dV. The fits of the normalized curves give Delta_1(0) = 6.15 \pm 0.45 meV and Delta_2(0) = 18 \pm 3 meV. Both gaps close at the same temperature and follow a BCS-like behavior.Comment: 4 pages, 4 eps color figure

Integrability and action operators in quantum Hamiltonian systems

For a (classically) integrable quantum mechanical system with two degrees of freedom, the functional dependence $\hat{H}=H_Q(\hat{J}_1,\hat{J}_2)$ of the Hamiltonian operator on the action operators is analyzed and compared with the corresponding functional relationship $H(p_1,q_1;p_2,q_2) = H_C(J_1,J_2)$ in the classical limit of that system. The former is shown to converge toward the latter in some asymptotic regime associated with the classical limit, but the convergence is, in general, non-uniform. The existence of the function $\hat{H}=H_Q(\hat{J}_1,\hat{J}_2)$ in the integrable regime of a parametric quantum system explains empirical results for the dimensionality of manifolds in parameter space on which at least two levels are degenerate. The comparative analysis is carried out for an integrable one-parameter two-spin model. Additional results presented for the (integrable) circular billiard model illuminate the same conclusions from a different angle.Comment: 9 page

Summary of the CMS Discovery Potential for the MSSM SUSY Higgses

This work summarises the present understanding of the expected MSSM SUSY Higgs reach for CMS. Many of the studies presented here result from detailed detector simulations incorporating final CMS detector design and response. With 30 fb-1 the h -> gamma,gamma and h -> bb channels allow to cover most of the MSSM parameter space. For the massive A,H,H+ MSSM Higgs states the channels A,H -> tau,tau and H+ -> tau,nu turn out to be the most profitable ones in terms of mass reach and parameter space coverage. Consequently CMS has made a big effort to trigger efficiently on taus. Provided neutralinos and sleptons are not too heavy, there is an interesting complementarity in the reaches for A,H -> tau,tau and A,H -> chi,chi.Comment: 19 pages, 27 figure

Institutes for the new model of economic growth regional management development (territories of advanced development, territories of advanced social and economic development)

The article describes the importance of institutions for the development of regional governance of a new model of economic growth, presenting both the tasks and the organizational structure of the main actors of development policy, as well as the nature of the relationship between the main actors and their cooperation with other external partners, such as public institutions, institutions of the business environment and individual international institutions. It is substantiated that the allocation of zones with a special legal status on the territory of the state is always associated with the need for appropriate institutional support. In the field of territories of advanced development, there is a separate regulation that changes the generally applicable rules of law concerning the beginning and implementation of economic activity. The instrument of this regulation is the functioning of institutions for the development of regional governance, which provide favorable conditions for doing business on special preferential terms. The creation by the state of special conditions for economic activity in relation to selected investors in this territory serves the primary purpose of accelerating the socio-economic development of certain parts of the country’s territory. The new model of economic growth in the form of territories of advanced development provides an increase in investment activity, intensification of foreign economic activity, reduction of regional differentiation

The functions of territories of advanced socio-economic development to attract private capital in the context of the formation of a new model of economic growth

The purpose of this study is to analyze the concept of territories of advanced socio-economic development and their role in the development of regions through the synergy of instruments for attracting private capital and mitigating the consequences of economic crises. The research methods used were systematization in terms of analyzing the essence of special economic zones, generalization of concepts analyzing the functions of territories of advanced development in Russia, a graphical method of presenting information. To achieve the purpose of the study, the following tasks have been solved: the essence of special economic zones and their role in the economic development of the state has been clarified; an analysis of the functioning of the territories of the advanced in Russia has been presented: the number of residents and jobs, the amount of declared investments are growing annually. The results of the study include: systematization of characteristics and statistical data on the functioning of territories of advanced socio-economic development in Russia; justification of the insufficient effectiveness of such territories and the functions performed by them; clarification of the need to activate the main function of the territories of advanced socio-economic development to attract private capital