Showing 1999Show all

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astro-ph1999★ 1 cited

The Cosmological Consequences of the Preon Structure of Matter

Vladimir Burdyuzha, Grigory Vereshkov, Olga Lalakulich +1

If the preon structure of quarks, leptons and gauge bosons will be proved then in the Universe during a relativistic phase transition the production of nonperturbative preon conden…

astro-ph1999

Space Positronium Detection by Radio Measurements

V. Burdyuzha, Ph. Durouchoux, V. Kauts

The possibility of positronium detection at radio wavelengths is investigated in detail. For orthopositronium, the fine structure lines of the n = 2 level (1.62 cm, 2.30 cm and 3.4…

physics.bio-ph1999★ 46 cited

Effective interaction between helical bio-molecules

E. Allahyarov, H. Loewen

The effective interaction between two parallel strands of helical bio-molecules, such as deoxyribose nucleic acids (DNA), is calculated using computer simulations of the "primitive…

astro-ph1999

The Forming of the Cosmological Constant

Vladimir Burdyuzha, Olga Lalakulich, Yuri Ponomarev +1

The problem of the physical nature and the cosmological constant genesis is discussed. This problem can't be solved in terms of the current quantum field theory which operates with…

math-ph1999★ 14 cited

Partitioning Composite Finite Systems

A. S. Botvina, A. D. Jackson, I. N. Mishustin

We compare different analytical and numerical methods for studying the partitions of a finite system into fragments. We propose a new numerical method of exploring the partition sp…

cond-mat.supr-con1999

On Dissipation Mechanism in the Intrinsic Josephson Effect in Layered Superconductors with d-wave Pairing

S. N. Artemenko

Conductivity mechanism in the regime of the intrinsic Josephson effect in layered superconductors with singlet d-wave pairing is studied theoretically. The cases of coherent and in…

cond-mat.supr-con1999★ 6 cited

Theory of vortex lattice effects on STM spectra in d-wave superconductors

A. S. Mel'nikov

Theory of scanning tunneling spectroscopy of low energy quasiparticle (QP) states in vortex lattices of d-wave superconductors is developed taking account of the effects caused by…

cond-mat.supr-con1999

3D-melting features of the irreversibility line in overdoped BiSrCuO at ultra-low temperature and high magnetic field

A. Morello, A. G. M. Jansen, R. S. Gonnelli +1

We have measured the irreversible magnetization of an overdoped BiSrCuO single crystal up to B=28 T and down to T=60 mK, and extracted the irreversibility line $B_{\rm…

cond-mat.supr-con1999★ 6 cited

Resistivity and electron-phonon coupling in YNiBC single crystals

R. S. Gonnelli, V. A. Stepanov, A. Morello +5

In this work, we present the results of precise measurements of the resistivity of YNiBC single crystals with = 15.5 K as a function of the temperature, and ana…

cond-mat.supr-con1999★ 3 cited

ab-plane resistivity and possible charge stripe ordering in strongly underdoped LaSrCuO single crystals

R. S. Gonnelli, V. A. Stepanov, A. Morello +4

We have measured the ab-plane resistivity of LaSrCuO single crystals with small Sr content (x=0.052 0.075) between 4.2 and 300 K by using the AC Van der Pauw te…

solv-int1999

Singular solution of the Liouville equation under perturbation

L. A. Kalyakin

Small perturbation of the Liouville equation under singular initial data is considered. An asymptotics of the singular solution is constructed by the method which is similar to Bog…

cond-mat.supr-con1999★ 7 cited

Models of the Pseudogap State in Cuprates

M. V. Sadovskii

We review a certain class of ("nearly") exactly solvable models of electronic spectrum of two-dimensional systems with fluctuations of short range order of "dielectric" (e.g. antif…

astro-ph1999★ 17 cited

Calibration and First light of the Diabolo photometer at the Millimetre and Infrared Testa Grigia Observatory

A. Benoit, F. Zagury, N. Coron +26

We have designed and built a large-throughput dual channel photometer, Diabolo. This photometer is dedicated to the observation of millimetre continuum diffuse sources, and in part…

astro-ph1999★ 3 cited

Gravitational Lensing of Relativistic Fireball

Eugeny Babichev, Vyacheslav Dokuchaev

The gravitational lensing of a relativistic fireball can produce the time delayed multiple images with quite different spectra and temporal patterns in contrast with a nonrelativis…

solv-int1999

Liouville equation under perturbation

L. A. Kalyakin

Small perturbation of the Liouville equation under smooth initial data is considered. Asymptotic solution which is available for a long time interval is constructed by the two scal…

cond-mat.dis-nn1999★ 16 cited

Development of (4-epsilon)-dimensional theory for the density of states near the Anderson transition

I. M. Suslov

The density of states for the Schroedinger equation with a Gaussian random potential is determined by the functional integral corresponding to the phi^4 theory with a `wrong' sign…

astro-ph1999★ 2 cited

The software system "Evolution of radio galaxies"

O. V. Verkhodanov, A. I. Kopylov, O. P. Zhelenkova +5

The project of the informational system creation on the problem of evolution of radio galaxies is described. This system, being developed at present, will allow a user to operate w…

hep-ph1999★ 26 cited

Exclusive semileptonic B decays to radially excited D mesons

D. Ebert, R. N. Faustov, V. O. Galkin

Exclusive semileptonic B decays to radially excited charmed mesons are investigated at the first order of the heavy quark expansion. The arising leading and subleading Isgur-Wise f…

cond-mat.mes-hall1999★ 75 cited

From spatially indirect to momentum-space indirect exciton by in-plane magnetic field

L. V. Butov, A. V. Mintsev, Yu. E. Lozovik +2

In-plane magnetic field is found to change drastically the photoluminescence spectra and kinetics of interwell excitons in GaAs/AlGaAs coupled quantum wells. The effect is due to t…

cond-mat.mes-hall1999

Exciton magnetotransport in two-dimensional systems: Weak-localization effects

P. I. Arseev, A. B. Dzyubenko

We consider the effect of a magnetic field on the transport of neutral composite particles, excitons, in weakly disordered 2D systems. In the case of classical transport, when…

quant-ph1999★ 60 cited

Multiqubit Spin

Alexander R. Kessel, Vladimir L. Ermakov

It is proposed that the state space of a quantum object with a complicated discrete spectrum can be used as a basis for multiqubit recording and processing of information in a quan…

chao-dyn1999★ 1 cited

Quantum-classical correspondence and nonclassical states generation in dissipative quantum optical systems

Kirill N. Alekseev, Natasha V. Alekseeva, Jan Perina

We develop a semiclassical method for the determination of the nonlinear dynamics of dissipative quantum optical systems in the limit of large number of photons N, based on the 1/N…

astro-ph1999

The Eddington Luminosity Phase in Quasars: Duration and Implications

V. I. Dokuchaev, Yu. N. Eroshenko, L. M. Ozernoy

Non-steady and eruptive phenomena in quasars are thought to be associated with the Eddington or super-Eddington luminous stage. Although there is no lack in hypotheses about the to…

cond-mat.str-el1999★ 3 cited

Thermodynamic Properties of Correlated Strongly Degenerate Plasmas

V. S. Filinov, P. R. Levashov, V. E. Fortov +1

An efficient numerical approach to equilibrium properties of strongly coupled systems which include a subsystem of fermionic quantum particles and a subsystem of classical particle…