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Classical Physics papers — page 115

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Decomposition of Electromagnetic Q and P Media
Two previously studied classes of electromagnetic media, labeled as those of Q media and P media, are decomposed according to the natural decomposition introduced by Hehl and Obukhov. Six special…
I. V. Lindell, A. FavaroMar 15, 2015
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From physical principles to relativistic classical Hamiltonian and Lagrangian particle mechanics
We show that classical particle mechanics (Hamiltonian and Lagrangian consistent with relativistic electromagnetism) can be derived from three fundamental assumptions: infinite reducibility,…
Gabriele CarcassiMar 15, 2015
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Fractional Power-Law Spatial Dispersion in Electrodynamics
Electric fields in non-local media with power-law spatial dispersion are discussed. Equations involving a fractional Laplacian in the Riesz form that describe the electric fields in such non-local…
Vasily E. Tarasov, Juan J. TrujilloMar 14, 2015
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How to reconcile Information theory and Gibbs-Herz entropy for inverted populated systems
In this paper we discuss about the validity of the Shannon entropy functional in connection with the correct Gibbs-Hertz probability distribution function. We show that there is no contradiction in…
Alessio Gagliardi, Alessandro PecchiaMar 10, 2015
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Torsional Elastic Waves in Double Wall Tube
We describe the double wall tube with cylindrical dislocation in the framework of the geometric theory of defects. The induced metric is found. The dispersion relation is obtained for the propagation…
M. O. KatanaevMar 3, 2015
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The hidden geometry of electromagnetism
Nearly all field theories suffer from singularities when particles are introduced. This is true in both classical and quantum physics. Classical field singularities result in the notorious self-force…
Yaron Hadad, Eliahu Cohen, Ido Kaminer et al.Mar 3, 2015
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Magnetic monopoles and dyons revisited: A useful contribution to the study of classical mechanics
Graduate level physics curricula in many countries around the world, as well as senior-level undergraduate ones in some major institutions, include Classical Mechanics courses, mostly based on…
Renato P dos SantosMar 2, 2015
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Meta-universality classes at criticality
Inferring the presence of critical dynamics from continuous measure- ments is a challenging problem. We solve this problem by showing that continuous narrowband dynamics from a critical system…
Duncan A. J. Blythe, Vadim V. NikulinFeb 27, 2015
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Mode density of orbital angular momentum modes in a cylindrical cavity and in free space
In this short note we derive an approximate expression for the mode density of modes carrying orbital angular momentum (OAM) in a cylindrical cavity which is large compared to the inverse wavevector…
Mauritz Andersson, Eilert Berglind, Gunnar BjörkFeb 27, 2015
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Slow sound in lined flow ducts
We consider the acoustic propagation in lined flow duct with a purely reactive impedance at the wall. This reacting liner has the capability to reduce the speed of sound, and thus to enhance the…
Yves Auregan, Vincent PagneuxFeb 27, 2015
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Circular polarization memory in polydisperse scattering media
We investigate the survival of circularly polarized light in random scattering media. The surprising persistence of this form of polarization has a known dependence on the size and refractive index…
Callum M. Macdonald, Steven L. Jacques, Igor MeglinskiFeb 26, 2015
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Acoustic integrated extinction
The integrated extinction (IE) is defined as the integral of the scattering cross-section as a function of wavelength. Sohl et al. [1] derived an IE expression for acoustic scattering that is causal,…
Andrew N. NorrisFeb 23, 2015
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A new method for obtaining approximate solutions of the hyperbolic Kepler's equation
We provide an approximate zero S(g,L) for the hyperbolic Kepler's equation S-g\, asinh (S)-L=0 for g∈(0,1) and L∈[0,∞). We prove, by using Smale's…
Martín Avendano, Verónica Martín-Molina, Jorge Ortigas-GalindoFeb 20, 2015
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Inter-sensor propagation delay estimation using sources of opportunity
Propagation delays are intensively used for Structural Health Monitoring or Sensor Network Localization. In this paper, we study the performances of acoustic propagation delay estimation between two…
Rémy Vincent, Mikael Carmona, Olivier Michel et al.Feb 20, 2015
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Gradient Index Devices for the Simultaneous Focusing of the S0 and A0 Lamb Modes
Gradient index devices for the simultaneous control of the S 0 and A 0 Lamb modes are presented and numerically analysed. It is found a special relationship between the refractive indexes for these…
Yabin Jin, Daniel Torrent, Yan Pennec et al.Feb 18, 2015
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Self-Propulsion of Liquid Marbles: Leidenfrost-Like Levitation Driven by the Marangoni Flow
Self-propulsion of liquid marbles filled with aqueous alcohol solutions and placed on a water surface is reported. The characteristic of velocity of the marbles is about 0.1 m/s. The phenomenon of…
Edward Bormashenko, Yelena Bormashenko, Roman Grynyov et al.Feb 15, 2015
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Invariant currents in lossy acoustic waveguides with complete local symmetry
We implement the concept of complete local symmetry in lossy acoustic waveguides. Despite the presence of losses, the existence of a spatially invariant current is shown theoretically and observed…
P. A. Kalozoumis, O. Richoux, F. K. Diakonos et al.Feb 12, 2015
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A theory of finite deformation magneto-viscoelasticity
This paper deals with the mathematical modelling of large strain magneto-viscoelastic deformations. Energy dissipation is assumed to occur both due to the mechanical viscoelastic effects as well as…
Prashant Saxena, Mokarram Hossain, Paul SteinmannFeb 9, 2015
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On rate-dependent dissipation effects in electro-elasticity
This paper deals with the mathematical modelling of large strain electro-viscoelastic deformations in electro-active polymers. Energy dissipation is assumed to occur due to mechanical viscoelasticity…
Prashant Saxena, Duc Khoi Vu, Paul SteinmannFeb 9, 2015
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Impact load mitigation in sandwich beams using local resonators
Dynamic response of sandwich beams with resonators embedded in the cores subjected to impact loads is studied. Using finite element models the effectiveness of various local resonator frequencies…
B. Sharma, C. T. SunFeb 2, 2015
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A general law for electromagnetic induction
The definition of the induced emf as the integral over a closed loop of the Lorentz force acting on a unit positive charge leads immediately to a general law for electromagnetic induction…
Giuseppe GiulianiFeb 2, 2015
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On the natural modes of helical structures
Natural modes of helical structures are treated by using the periodic dyadic Green's functions in cylindrical coordinates. The formulation leads to an infinite system of one-dimensional integral…
Sven Nordebo, Mats Gustafsson, Gerhard Kristensson et al.Feb 2, 2015
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Notes on Gauss law applied for time varying electric field in vacuum
Gauss's law in integral form states that closed surface integral of electric field is proportional to net charge present within the volume bounded by this closed surface. Gauss's law in…
Altay ZhakatayevJan 26, 2015
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Singular perturbations and cloaking illusions for elastic waves in membranes and Kirchhoff plates
A perturbation approach is used for analysis of a near-cloak in shielding a finite scatterer from an incident flexural wave. The effect of the boundary conditions on the interior surface of the…
I. S. Jones, M. Brun, N. V. Movchan et al.Jan 25, 2015
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Direct calculation of length contraction and clock retardation
For simple electromagnetic models of a rod and a clock, a change of the shape of the rod and of the rate of the clock when they are set in uniform motion is calculated exactly, employing the correct…
D. V. RedzicJan 22, 2015
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