Results 11 to 20 of about 1,341,910 (319)
A microscopic model of triangular arbitrage [PDF]
Physica A 371 (2006) 572-584, 2006 We introduce a microscopic model which describes the dynamics of each dealer in multiple foreign exchange markets, taking account of the triangular arbitrage transaction. The model reproduces the interaction among the markets well. We explore the relation between the parameters of the present microscopic model and the spring constant of a macroscopic ...
Y. Aiba, N. Hatano
arxiv +4 more sources
A microscopic model for solidification [PDF]
Europhysics Letters (EPL), 1999 We present a novel picture of a non isothermal solidification process starting from a molecular level, where the microscopic origin of the basic mechanisms and of the instabilities characterizing the approach to equilibrium is rendered more apparent than in existing approaches based on coarse grained free energy functionals la Landau.
M. Conti +2 more
openaire +5 more sources
Microscopic models of hardness [PDF]
Journal of Superhard Materials, 2010 Recent developments in the field of microscopic hardness models have been reviewed. In these models, the theoretical hardness is described as a function of the bond density and bond strength. The bond strength may be characterized by energy gap, reference potential, electron-holding energy or Gibbs free energy, and different expressions of bond ...
Gao, F.M., Gao, L.H.
openaire +3 more sources
Magnetoelectric Coupling Effects in Tb-Doped BiFeO3 Nanoparticles
Magnetochemistry, 2023 The magnetic, electric, and optical properties in Tb-doped BiFeO3 nanoparticles as functions of size and doping concentrations were investigated using a microscopic model, taking into account both linear and quadratic magnetoelectric (ME) coupling.
Iliana Apostolova +2 more
doaj +1 more source
Microscopic computational model of a superfluid [PDF]
The Journal of Chemical Physics, 2010 A finite one-dimensional microscopic model of a superfulid is presented. The model consists of interacting Bose particles with an additional impurity particle confined to a ring. Both semiclassical and exact quantum calculations reveal dissipationless motion of impurity with increased effective mass due to its interaction with the excitations of Bose ...
Mikhail Ovchinnikov, Alexey Novikov
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Magnetization, Band Gap and Specific Heat of Pure and Ion Doped MnFe2O4 Nanoparticles
Magnetochemistry, 2023 We have studied the magnetic properties of ion doped MnFe2O4 nanoparticles with the help of a modified Heisenberg model and Green’s function theory taking into account all correlation functions.
I. N. Apostolova +2 more
doaj +1 more source
Microscopic model of cuprate superconductivity [PDF]
International Journal of Quantum Chemistry, 2010 AbstractWe present a model for cuprate superconductivity based on the identification of an experimentally detected “local superconductor” as a charge 2 fermion pairing in a circular, stationary density wave. This wave acts like a highly correlated local “boson” satisfying a modified Cooper problem with additional correlation stabilization relative to ...
Squire, Richard H., March, Norman H.
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A microscopic model of evolution of recombination [PDF]
Physica A: Statistical Mechanics and its Applications, 2005 to appear in Physica ...
BAGNOLI, FRANCO, C. GUARDIANI
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Modeling exchange bias microscopically [PDF]
Journal of Magnetism and Magnetic Materials, 2002 Exchange bias is a horizontal shift of the hysteresis loop observed for a ferromagnetic layer in contact with an antiferromagnetic layer. Since exchange bias is related to the spin structure of the antiferromagnet, for its fundamental understanding a detailed knowledge of the physics of the antiferromagnetic layer is inevitable. A model is investigated
Nowak, Ulrich +2 more
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Microscopic realizations of the trap model [PDF]
Journal of Physics A: Mathematical and General, 2004 Monte Carlo optimizations of Number Partitioning and of Diophantine approximations are microscopic realizations of `Trap Model' dynamics. This offers a fresh look at the physics behind this model, and points at other situations in which it may apply.
Junier, Ivan, Kurchan, Jorge
openaire +4 more sources