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math.SG2009

Deformations of Poisson structures by closed 3-forms

O. I. Mokhov

We prove that an arbitrary Poisson structure omega^{ij}(u) and an arbitrary closed 3-form T_{ijk}(u) generate the local Poisson structure A^{ij}(u,u_x) = M^i_s(u,u_x)omega^{sj}(u),…

cond-mat.soft2009★ 90 cited

Breakdown of The Excess Entropy Scaling for the Systems with Thermodynamic Anomalies

Yu. D. Fomin, N. V. Gribova, V. N. Ryzhov

This articles presents a simulation study of the applicability of the Rosenfeld entropy scaling to the systems which can not be approximated by effective hard spheres. Three system…

astro-ph.CO2009★ 6 cited

Determination of Redshifts for Selected IVS Sources. I

Kirill Maslennikov, Alexandra Boldycheva, Zinovy Malkin +1

From observations with the 6-m BTA telescope at SAO RAS, we have determined spectroscopic redshifts of seven optical objects whose coordinates coincide with those of radio sources…

astro-ph.HE2009★ 10 cited

The Filling of Neutron Star Magnetospheres with Plasma: Dynamics of the Motion of Electrons and Positrons

Ya. N. Istomin, D. N. Sobyanin

We consider the motion of charged particles in the vacuum magnetospheres of rotating neutron stars with a strong surface magnetic field, B>10^(12) G. The electrons and positrons fa…

cond-mat.stat-mech2009★ 21 cited

True Dielectric and Ideal Conductor in Theory of the Dielectric Function for Coulomb System

V. B. Bobrov, S. A. Trigger

On the basis of the exact relations the general formula for the static dielectric permittivity e(q,0) for Coulomb system is found in the region of small wave vectors q. The obtaine…

cond-mat.str-el2009★ 6 cited

First-principles investigation of uranium monochalcogenides

A. O. Shorikov, J. E. Medvedeva, A. I. Poteryaev +2

We present first-principles investigation of the electronic structure and magnetic properties of uranium monochalcogenides: US, USe, UTe. The calculations were performed by using r…

cond-mat.str-el2009★ 3 cited

The influence of defects on magnetic properties of fcc-Pu

A. O. Shorikov, M. A. Korotin, V. I. Anisimov +2

The influence of vacancies and interstitial atoms on magnetism in Pu has been considered in frames of the Density Functional Theory (DFT). The relaxation of crystal structure arisi…

cond-mat.mes-hall2009★ 6 cited

Stationary drag photocurrent caused by strong running wave in quantum wire: quantization of current

M. V. Entin, L. I. Magarill

The stationary current induced by a strong running potential wave in one-dimensional system is studied. Such a wave can result from illumination of a straight quantum wire with spe…

gr-qc2009

Brane Universe: Global Geometry

Victor Berezin

The global geometries of bulk vacuum space-times in the brane-universe models are investigated and classified in terms of geometrical invariants. The corresponding Carter-Penrose d…

cs.IT2009★ 44 cited

The use of ideas of Information Theory for studying "language" and intelligence in ants

Boris Ryabko, Zhanna Reznikova

In this review we integrate results of long term experimental study on ant "language" and intelligence which were fully based on fundamental ideas of Information Theory, such as th…

hep-th2009★ 25 cited

CFT driven cosmology and the DGP/CFT correspondence

A. O. Barvinsky, C. Deffayet, A. Yu. Kamenshchik

We present a dual 5D braneworld picture of a recently suggested model for a microcanonical description of a 4D cosmology driven by a conformal field theory with a large number of q…

astro-ph.SR2009★ 31 cited

Pulsations in the atmosphere of the roAp star HD 24712 II. Theoretical models

Hideyuki Saio, Tanya Ryabchikova, Mikhail Sachkov

We discuss pulsations of the rapidly oscillating Ap (roAp) star HD 24712 (HR 1217) based on nonadiabatic analyses taking into account the effect of dipole magnetic fields. We have…

cond-mat.mes-hall2009★ 28 cited

Interference of magnetointersubband and phonon-induced resistance oscillations in single GaAs quantum wells with two populated subbands

A. A. Bykov, A. V. Goran, S. A. Vitkalov

Low-temperature electron magnetotransport in single GaAs quantum wells with two populated subbands is studied at large filling factors. Magneto-inter-subband (MIS) and acoustic-pho…

astro-ph.CO2009★ 24 cited

Bound on induced gravitational wave background from primordial black holes

Edgar Bugaev, Peter Klimai

The today's energy density of the induced (second order) gravitational wave background in the frequency region Hz is constrained using the existing limits on…

cond-mat.mes-hall2009★ 55 cited

Exact wave functions for an electron on a graphene triangular quantum dot

A. V. Rozhkov, Franco Nori

We generalize the known solution of the Schrödinger equation, describing a particle confined to a triangular area, for a triangular graphene quantum dot with armchair-type boundari…

physics.optics2009★ 34 cited

Spallative ablation of dielectrics by X-ray laser

N. A. Inogamov, V. V. Zhakhovsky, A. Ya. Faenov +15

Short laser pulse in wide range of wavelengths, from infrared to X-ray, disturbs electron-ion equilibrium and rises pressure in a heated layer. The case where pulse duration …

math.AT2009★ 7 cited

Configuration spaces, bistellar moves, and combinatorial formulae for the first Pontryagin class

Alexander A. Gaifullin

The paper is devoted to the problem of finding explicit combinatorial formulae for the Pontryagin classes. We discuss two formulae, the classical Gabrielov-Gelfand-Losik formula ba…

cond-mat.mes-hall2009★ 11 cited

Electrons scattering in the monolayer graphene with the short-range impurities

Natalie E. Firsova, Sergey A. Ktitorov

Scattering problem for electrons in monolayer graphene with short-range perturbations of the types "local chemical potential" and "local gap" has been solved. Zero gap and non-zero…

astro-ph.CO2009★ 20 cited

Tessellated Mapping of Cosmic Background Radiation Correlations and Source Distributions

O. V. Verkhodanov, M. L. Khabibullina, E. K. Majorova

We offer a method of correlations mapping on the full celestial sphere that allows to check the quality of reconstructed maps, their non-Gaussianity and conduct experiments in vari…

cond-mat.mes-hall2009★ 30 cited

Optical control of electron spin coherence in CdTe/(Cd,Mg)Te quantum wells

E. A. Zhukov, D. R. Yakovlev, M. M. Glazov +5

Optical control of the spin coherence of quantum well electrons by short laser pulses with circular or linear polarization is studied experimentally and theoretically. For that pur…

hep-th2009★ 58 cited

Non-conformal limit of AGT relation from the 1-point torus conformal block

Vasiliy Alba, Andrey Morozov

Given a 4d N=2 SUSY gauge theory, one can construct the Seiberg-Witten prepotentional, which involves a sum over instantons. Integrals over instanton moduli spaces require regulari…

astro-ph.CO2009★ 8 cited

The Structure of Clusters with Bimodal Distributions of Galaxy Radial Velocities. II: A1775

Alexander I. Kopylov, Flera G. Kopylova

We analyze the structure of the cluster of galaxies Abell 1775 (13h42m, +26d22', cz ~ 21000 km/s), which exhibits a bimodal distribution of radial velocities of the containing gala…

astro-ph.CO2009★ 17 cited

Analysis of the Properties of Clusters of Galaxies in the Region of the Ursa Major Supercluster

Flera G. Kopylova, Alexander I. Kopylov

We analyze the properties of the clusters of galaxies in the region of the Ursa Major (UMa) supercluster using observational data from SDSS and 2MASS catalogs. The region studied i…

astro-ph.CO2009★ 7 cited

The Structure of Clusters with Bimodal Distributions of Galaxy Radial Velocities. I. A1035

Alexander I. Kopylov, Flera G. Kopylova

The structure of the A1035 cluster of galaxies (10h32m +40d13', cz ~ 22000 km/s), which exhibits a bimodal distribution of galaxy radial velocities (ΔV\approx 3000 km/s), is analyz…