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Перегляд Condensed Matter Physics, 2008, том 11 за назвою

Репозиторій DSpace/Manakin

Перегляд Condensed Matter Physics, 2008, том 11 за назвою

Сортувати за: Порядок: Результатів:

  • On the implementation of cryptoalgorithms based on algebraic graphs over some commutative rings 
    Kotorowicz, J.S.; Ustimenko, V.A. (Condensed Matter Physics, 2008)
    The paper is devoted to computer implementation of some graph based stream ciphers. We compare the time performance of this new algorithm with fast, but no very secure RC4, and with DES. It turns out that some of new ...
  • On the kinetics of phase transformation of small particles in Kolmogorov's model 
    Alekseechkin, N.V. (Condensed Matter Physics, 2008)
    The classical Kolmogorov-Johnson-Mehl-Avrami (KJMA) theory is generalized to the case of a finite-size system. The problem of calculating the new-phase volume fraction in a spherical domain is solved within the framework ...
  • Phase transitions in the lattice model of intercalation 
    Mysakovych, T.S.; Krasnov, V.O.; Stasyuk, I.V. (Condensed Matter Physics, 2008)
    The lattice model which can be employed for the description of intercalation of ions in crystals is considered in this work. Pseudospin formalism is used in describing the interaction of electrons with ions. The possibility of ...
  • Quantum codes from algebraic curves with automorphisms 
    Shaska, T. (Condensed Matter Physics, 2008)
    Let X be an algebraic curve of genus g ≥ 2 defined over a field Fq of characteristic p > 0. From X, under certain conditions, we can construct an algebraic geometry code C. If the code C is self-orthogonal under the ...
  • Quantum phase transition: Van Vleck antiferromagnet in a magnetic field 
    Ivanova, I.M.; Kalita, V.M.; Pashkov, V.O.; Loktev, V.M. (Condensed Matter Physics, 2008)
    Theoretical description of magnetic properties of antiferromagnetic state, induced by the longitudinal magnetic eld, in the Van Vleck singlet magnet with single-ion anisotropy of easy-plane type and ion spin S = ...
  • Random walks in random environment with Markov dependence on time 
    Boldrighini, C.; Minlos, R.A.; Pellegrinotti, A. (Condensed Matter Physics, 2008)
    We consider a simple model of discrete-time random walk on Zν, ν = 1, 2, . . . in a random environment independent in space and with Markov evolution in time. We focus on the application of methods based on the properties ...
  • Selection-mutation balance models with epistatic selection 
    Kondratiev, Yu.G.; Kuna, T.; Ohlerich, N. (Condensed Matter Physics, 2008)
    We present an application of birth-and-death processes on configuration spaces to a generalized mutationselection balance model. The model describes the aging of population as a process of accumulation of mutations in a ...
  • Semi-infinite metal: perturbative treatment based on semi-infinite jellium 
    Kostrobij, P.P.; Markovych, B.M. (Condensed Matter Physics, 2008)
    Energy of electronic subsystem of semi-infinite metal is presented in the form of an expansion in powers of pseudo-potential. It is shown that generally electron many-particle density matrices are necessary for the energy ...
  • Spin fluctuations and the "strange metal" behavior of a weakly doped antiferromagnet 
    Loktev, V.M.; Turkowski, V. (Condensed Matter Physics, 2008)
    We analyze the spectral properties of a phenomenological model for a weakly doped two-dimensional antiferromagnet, in which the carriers move within one of the two sublattices where they were introduced. Such a constraint ...
  • Structural relaxation in pure liquids: Analysis of wavenumber dependence within the approach of generalized collective modes 
    Bryk, T.; Mryglod, I. (Condensed Matter Physics, 2008)
    Wavenumber dependence of structural relaxation in liquids is studied by the method of generalized collective modes (GCM). A new perturbation approach within the GCM method is proposed and applied in the longwavelenth limit ...
  • The effect of polarization charges on energy of univalent and bivalent donors in a spherical quantum dot 
    Boichuk, V.I.; Bilynskyi, I.V.; Leshko, R.Ya. (Condensed Matter Physics, 2008)
    The energy of electrons of univalent and bivalent impurity of a spherical β -HgS/CdS nanoheterostructure is calculated as a function of quantum dot radius by the variation technique in the case of finite and infinite ...
  • The Gibbs fields approach and related dynamics in image processing 
    Descombes, X.; Zhizhina, E. (Condensed Matter Physics, 2008)
    We give in the paper a brief overview of how the Gibbs fields and related dynamics approaches are applied in image processing. We discuss classical pixel-wise models as well as more recent spatial point process models ...
  • The history of the "fast sound" in liquid water 
    Ruocco, G.; Sette, F. (Condensed Matter Physics, 2008)
    This paper aims to discuss the present understanding of the high frequency dynamics in liquid water, with particular attention to a specific phenomenon – the so-called fast sound – since its first appearance in the literature ...
  • Theory of radiation and absorption of deformed field quanta 
    Vakarchuk, I.O. (Condensed Matter Physics, 2008)
    We calculate the intensity of spontaneous radiation of a system of non-linear quantum eld, where the nonlinearity is due to deformations of the Poison brackets of the generalized coordinates and momenta.
  • Thermodynamics and complex dielectric permittivity of mixed crystals of the Rb₁-x(NH₄)xH₂PO₄ type 
    Levitsky, R.R.; Sorokov, S.I.; Stankowski, J.; Trybula, Z.; Vdovych, A.S. (Condensed Matter Physics, 2008)
    We propose a pseudospin model for proton glasses of the Rb₁₋x(NH₄)xH₂PO₄(Rb₁₋x(ND₄)xD₂PO₄) type, which takes into account the energy levels of hydrogens (deuterons) around the PO₄ group, long-range interactions between the ...
  • The role of angular momentum conservation law in statistical mechanics 
    Dubrovskii, I.M. (Condensed Matter Physics, 2008)
    Within the limits of Khinchin ideas [A.Y. Khinchin, Mathematical Foundation of Statistical Mechanics. NY, Ed. Dover, 1949] the importance of momentum and angular momentum conservation laws was analyzed for two cases: for ...
  • The second order phase transition in Sn₂P₂S₆ crystals: anharmonic oscillator model 
    Yevych, R.M.; Vysochanskii, Yu.M. (Condensed Matter Physics, 2008)
    Statistical theory for ferroelectrics based on triple well anharmonic potential was used for the case of structural second order phase transition in Sn₂P₂S₆ crystals. Parameters of effective Hamiltonian of the model ...
  • Water dynamics at the nanoscale 
    Masciovecchio, C.; Bencivenga, F.; Gessini, A. (Condensed Matter Physics, 2008)
    The recent construction of an Inelastic UltraViolet Scattering (IUVS) beamline at the ELETTRA Synchrotron Light Laboratory opens new possibilities for studying the density fluctuation spectrum, S(Q,E), of disordered systems ...
  • X-ray photoelectron spectroscopy of Sn₂P₂S₆ crystals 
    Grigas, J.; Talik, E.; Lazauskas, V.; Vysochanskii, Yu.M.; Yevych, R.; Adamiec, M.; Nelkinas, V. (Condensed Matter Physics, 2008)
    The paper presents the X-ray photoelectron spectra (XPS) of the valence band (VB) and of the core levels (CL) of uniaxial ferroelectric Sn₂P₂S₆ single crystals from different crystallographic planes in both paraelectric and ...
  • Yamada-Watanabe theorem for stochastic evolution equations in infinite dimensions 
    Röckner, M.; Schmuland, B.; Zhang, X. (Condensed Matter Physics, 2008)
    The purpose of this note is to give a complete and detailed proof of the fundamental Yamada-Watanabe Theorem on infinite dimensional spaces, more precisely in the framework of the variational approach to stochastic partial ...

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