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Showing 2001Show all

273 papers · 1 filter

gr-qc2001★ 9 cited

How Is the Maximum Entropy of a Quantized Surface Related to Its Area?

I. B. Khriplovich, R. V. Korkin

The maximum entropy of a quantized surface is demonstrated to be proportional to the surface area in the classical limit. The result is valid in loop quantum gravity, and in a some…

quant-ph2001

Tomography of multimode quantum systems with quadratic Hamiltonians and multivariable Hermite polynomials

V. I. Man'ko, V. A. Sharapov, E. V. Shchukin

The systems with multimode nonstationary Hamiltonians quadratic in position and momentum operators are reviewed. The tomographic probability distributions (tomograms) for the Fock…

astro-ph2001★ 173 cited

Using Cepheids to determine the galactic abundance gradient I. The solar neighbourhood

S. M. Andrievsky, V. V. Kovtyukh, R. E. Luck +7

A number of studies of abundance gradients in the galactic disk have been performed in recent years. The results obtained are rather disparate: from no detectable gradient to a rat…

cond-mat2001★ 24 cited

Inelastic light, neutron, and X-ray scatterings related to the heterogeneous elasticity of glasses

E. Duval, L. Saviot, A. Mermet +4

The effects of plasticization of poly(methyl methacrylate) glass on the boson peaks observed by Raman and neutron scattering are compared. In plasticized glass the cohesion heterog…

physics.optics2001★ 14 cited

Discrete structure of ultrathin dielectric films and their surface optical properties

S. V. Sukhov, K. V. Krutitsky

The boundary problem of linear classical optics about the interaction of electromagnetic radiation with a thin dielectric film has been solved under explicit consideration of its d…

cond-mat.mes-hall2001★ 1 cited

Charged two-dimensional magnetoexciton and two-mode squeezed vacuum states

A. B. Dzyubenko

A novel unitary transformation of the Hamiltonian that allows one to partially separate the center-of-mass motion for charged electron-hole systems in a magnetic field is presented…

cond-mat.str-el2001★ 95 cited

Elastic interaction and superstructures in manganites and other Jahn-Teller systems

D. I. Khomskii, K. I. Kugel

The role of elastic interactions between Jahn-Teller ions in formation of various orbital- and charge-ordered structures in manganites and related compounds is analyzed. It is show…

astro-ph2001

Dynamical Screening of Gravitational Interaction and Planetary Motions in Modified Solar Potential

A. G. Bashkirov, A. V. Vityazev, G. V. Pechernikova

A density disturbance in a system of gravitating mass, induced by a moving selected body gives rise to a dynamical screening of Newtonian potential of this body. When applied to th…

quant-ph2001

Delay-dependent amplification of a probe pulse via stimulated Rayleigh scattering

M. V. Fedorov, S. V. Popruzhenko, D. F. Zaretsky +1

Stimulated Rayleigh scattering of pump and probe light pulses of close carrier frequencies is considered. A nonzero time delay between the two pulses is shown to give rise to ampli…

hep-ex2001★ 8 cited

Study of the K- -> pi0 e- nu decay

I. Ajinenko, S. Akimenko, G. Akopdzhanov +32

The decay K- -> pi0 e- nu has been studied using in-flight decays detected with "ISTRA+" setup operating at the 25 GeV negative secondary beam of the U-70 PS. About 130K events wer…

cond-mat.mes-hall2001★ 17 cited

Quantum oscillations of spin current through a III-V semiconductor loop

A. G. Mal'shukov, V. Shlyapin, K. A. Chao

We have investigated the transport of spin polarization through a classically chaotic semiconductor loop with a strong Rashba spin-orbit interaction. We found that if the escape ti…

astro-ph2001★ 33 cited

The KPNO International Spectroscopic Survey. III. [O III]-selected Survey List

John J. Salzer, Caryl Gronwall, Vicki L. Sarajedini +8

The KPNO International Spectroscopic Survey (KISS) is an objective-prism survey for extragalactic emission-line objects. It combines many of the features of previous slitless spect…

astro-ph2001★ 16 cited

Effects of neutrino oscillations on the supernova signal in LVD

M. Aglietta, P. Antonioli, G. Bari +21

We study the impact of neutrino oscillations on the supernova neutrino signal in the Large Volume Detector (LVD). The number of expected events for a galactic supernova (D=10 kpc)…

gr-qc2001★ 12 cited

Towards a Theory of Quantum Black Hole

V. Berezin

We describe some specific quantum black hole model. It is pointed out that the origin of a black hole entropy is the very process of quantum gravitational collapse. The quantum bla…

astro-ph2001

Side Influences on the Operation of Space-Based Interferometers, as Inferred from LLR Data

Yurii V. Dumin

Processing the data of lunar laser ranging (LLR) points to the effect of anomalous increase in the lunar semimajor axis (with an excessive rate about 1.3 cm/yr), which cannot be at…

nlin.SI2001★ 3 cited

Commutative Poisson subalgebras for the Sklyanin bracket and deformations of known integrable models

V. V. Sokolov, A. V. Tsiganov

A hierarchy of commutative Poisson subalgebras for the Sklyanin bracket is proposed. Each of the subalgebras provides a complete set of integrals in involution with respect to the…

hep-ph2001★ 4 cited

Super black hole as spinning particle: Supersymmetric baglike core

Alexander Burinskii

We consider particlelike solutions to supergravity based on the Kerr-Newman black hole (BH) solution. The BH singularity is regularized by means of a phase transition to a new vacu…

cond-mat.supr-con2001★ 59 cited

Local density of states in superconductor-strong ferromagnet structures

F. S. Bergeret, A. F. Volkov, K. B. Efetov

We study the dependence of the local density of states (LDOS) on coordinates for a superconductor-ferromagnet (S/F) bilayer and a S/F/S structure assuming that the exchange energy…

nlin.CD2001★ 23 cited

Torus Fractalization and Intermittency

Sergey P. Kuznetsov

The bifurcation transition is studied for the onset of intermittency analogous to the Pomeau-Manneville mechanism of type-I, but generalized for the presence of a quasiperiodic ext…

hep-ph2001★ 2 cited

One-loop corrections of order (Z alpha)^6m_1/m_2, (Z alpha)^7 to the muonium fine structure

R. N. Faustov, A. P. Martynenko

The corrections of order (Z alpha)^6m_1/m_2 and (Z alpha)^7 from one-loop two-photon exchange diagrams to the energy spectra of the hydrogenic atoms are calculated with the help of…

cond-mat.soft2001★ 110 cited

Long-lived states in synchronized traffic flow. Empirical prompt and dynamical trap model

Ihor Lubashevsky, Reinhard Mahnke, Peter Wagner +1

The present paper proposes a novel interpretation of the widely scattered states (called synchronized traffic) stimulated by Kerner's hypotheses about the existence of a multitude…

cond-mat.str-el2001★ 107 cited

Binding Energy of Charged Excitons in ZnSe-based Quantum Wells

G. V. Astakhov, D. R. Yakovlev, V. P. Kochereshko +9

Excitons and charged excitons (trions) are investigated in ZnSe-based quantum well structures with (Zn,Be,Mg)Se and (Zn,Mg)(S,Se) barriers by means of magneto-optical spectroscopy.…

cond-mat.str-el2001★ 72 cited

Optical Method for Determination of Carrier Density in Modulation Doped Quantum Wells

G. V. Astakhov, V. P. Kochereshko, D. R. Yakovlev +7

An optical method is suggested to determine the concentration of two-dimensional electrons in modulation-doped quantum wells at low and moderate electron densities between 10^{9} a…

astro-ph2001★ 8 cited

Radial Velocities of Dwarf Spheroidal Galaxies in the M81 Group

M. E. Sharina, I. D. Karachentsev, A. N. Burenkov

Long-slit observations of 4 dwarf spheroidal galaxies in the M81 group are presented. We have obtained a heliocentric velocity of globular cluster candidate located near the center…