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Search Results: 1 - 10 of 1435 matches for " Bohdan Lev "
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Wave Function as Geometric Entity  [PDF]
Bohdan I. Lev
Journal of Modern Physics (JMP) , 2012, DOI: 10.4236/jmp.2012.38096
Abstract: A spacial approach to the geometrization the theory of the electron has been proposed. The particle wave function is represented by a geometric entity, i.e., Clifford number, with the translation rules possessing the structure of Dirac equation for any manifold. A solution of this equation is obtained in terms of geometric treatment. New experiments concerning the geometric nature wave function of electrons are proposed.
To the concept of the elastic interaction
Bohdan Lev
Physics , 2006,
Abstract: A general description of elastic matter and the long-range elastic interaction is propose. The type of the far-field interaction is determined by the way of breaking in the continuum distribution of the elastic field produced by topological defects, which can present isolated inclusions. To provide an adequate description of the inter-inclusion interaction. Thus we can determine the size of inclusion as core topological defect in elastic field. In this description the charge in electrodynamic and mass in gravity present peculiarity of elastic filed and determined in term this field. The interaction is a direct and immediate result of the field deformation. Exist two type interaction. Interaction through change the ground state of elastic matter and interaction with the help of the carrier of interaction, which can present as small changing of deformations.
Nonlinear model of source of a elastic field
Bohdan Lev
Physics , 2008,
Abstract: A general description of the long-range elastic interaction is proposed. The far-field type of the interaction is determined by the way of symmetry breaking of the distribution of the elastic field produced by the topological defect as isolated inclusions. Every topological defect can be present as the source of the elastic field and can be described in the terms of this field. At the short distance the source can be described as nonlinear object which present charge of linear theory of elastic field at the far distance. In this article the nonlinear models of source of a elastic field was proposed.
Cellular structure in system of interacting particles
Bohdan Lev
Physics , 2008,
Abstract: The general description of formation the cellular structure in the system of interacting particles is proposed. Interactions between particles are presumably well-understood and the phase transition in which can be studied in the scale of particle resolution. We presented analytical results of possible cellular structures for suspension of colloidal particles, in system particles immersed in liquid crystal and gravitational system. We have shown that cellular structure formation can occur in system of interacting particles for realistic values of temperature and particles concentration.
"Equilibrium" states of non equilibrium system
Bohdan Lev
Physics , 2008,
Abstract: A possible approach to description of the non equilibrium system has been proposed. Based on the Fokker-Plank equation in term of energy for non equilibrium distribution function of macroscopical system was obtained the stationary solution which can be interpreted as the equilibrium distribution function for new energetic state. The proposed approach takes into account the possible motion between different states of system, induced by dissipation of energy and influence of environment which dependence on energy of the system. A non-linear model, which describe possible stationary state of system with different processes in it, has been described.
System of particles with interaction and the cluster formation in condensed matter
Volodymyr Krasnoholovets,Bohdan Lev
Physics , 2002,
Abstract: We investigate the behaviour of a system of particles with the different character of interaction. The approach makes it possible to describe systems of interacting particles by statistical methods taking into account a spatial nonhomogeneous distribution of particles, i.e. cluster formation. For these clusters are evaluated: their size, the number of particles in a cluster, and the temperature of phase transition to the cluster state. Three systems are under consideration: electrons on the liquid helium surface, particles interacting by the shielding Coulomb potential, which are found under the influence of an elastic field (e.g. nucleons in a nucleus), and gravitating masses with the Hubble expansion.
Large alphabet quantum key distribution with two-mode coherently correlated beams
Vladyslav C. Usenko,Bohdan I. Lev
Physics , 2005, DOI: 10.1016/j.physleta.2005.08.034
Abstract: The large-alphabet quantum cryptography protocol based on the two-mode coherently correlated multi-photon beams is proposed. The alphabet extension for the protocol is shown to result in the increase of the QKD effectiveness and security.
Energy representation for out-of-equilibrium Brownian-like systems: steady states and fluctuation relations
Bohdan I. Lev,Alexei D. Kiselev
Physics , 2010, DOI: 10.1103/PhysRevE.82.031101
Abstract: Stochastic dynamics in the energy representation is employed as a method to study non-equilibrium Brownian-like systems. It is shown that the equation of motion for the energy of such systems can be taken in the form of the Langevin equation with multiplicative noise. Properties of the steady states are examined by solving the Fokker-Planck equation for the energy distribution functions. The generalized integral fluctuation theorem is deduced for the systems characterized by the shifted probability flux operator. There are a number of entropy and fluctuation relations such as the Hatano-Sasa identity and the Jarzynski's equality that follow from this theorem.
Toy model of superconductivity
Konstantin V. Grigorishin,Bohdan I. Lev
Physics , 2014,
Abstract: The model of hypothetical superconductivity, where the energy gap asymptotically approaches zero as temperature or magnetic field increases, has been proposed. Formally the critical temperature and the second critical field for such a superconductor is equal to infinity. Thus the material is in superconducting state always.
Strength of Concrete in Slabs, Investigates along Direction of Concreting  [PDF]
Bohdan Stawiski
Open Journal of Civil Engineering (OJCE) , 2012, DOI: 10.4236/ojce.2012.21004
Abstract: In theory of concrete it is assumed that concrete composites are isotropic on a macro scale. For example, it is assumed that a floor slab’s or a beam’s strength is identical in all directions and its nonhomogeneity is random. Hence neither calculations of the load-bearing capacity of structural components nor the techniques of investigating concrete in structure in situ take into account to a sufficient degree the fact that the assumption about concrete isotropy is overly optimistic. The present research shows that variation in concrete strength along the direction of concreting has not only a qualitative effect (as is commonly believed), but also a significant quantitative effect. This indicates that concrete is a composite which has not been fully understood yet. The paper presents evaluations of ordinary concrete (OC) homogeneity along component thickness along the direction of concreting. The ultrasonic method and modified exponential heads with a point contact with concrete were used in the investigations [1-3].
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