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Classical Physics papers — page 148

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Funciones especiales con aplicaciones a la Mecanica Cuantica y al Electromagnetismo
Special functions and their applications in quantum mechanics and electromagnetism: Course notes.
Juan M. RomeroMar 11, 2011
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Initial accelerations of pulsars caused by external kicks
Using energy conservation we show that if a sudden external force of unknown nature causes a newborn pulsar of mass M=1.4 M and radius R=10 km to have the acceleration a0 then we can…
Ricardo HerasMar 10, 2011
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Dimensional Analysis and electric potential due to a uniformly charged sheet
Dimensional analysis, superposition principle, and continuity of electric potential are used to study electric potential of a uniformly charged square sheet at its plane. It is shown that knowing the…
Amir AghamohammadiMar 10, 2011
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Energy Dissipation Via Coupling With a Finite Chaotic Environment
We study the flow of energy between a harmonic oscillator (HO) and an external environment consisting of N two-degrees of freedom non-linear oscillators, ranging from integrable to chaotic according…
Marcelo A. Marchiori, Marcus A. M. de AguiarMar 9, 2011
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Relativistic analysis of the dielectric Einstein box: Abraham, Minkowski and total energy-momentum tensors
We analyse the "Einstein box" thought experiment and the definition of the momentum of light inside matter. We stress the importance of the total energy-momentum tensor of the closed system…
Tomas Ramos, Guillermo F. Rubilar, Yuri N. ObukhovMar 8, 2011
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Steady states of the parametric rotator and pendulum
We discuss several steady-state rotation and oscillation modes of the planar parametric rotator and pendulum with damping. We consider a general elliptic trajectory of the suspension point for both…
Antonio O. BouzasMar 8, 2011
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Dispersive wave runup on non-uniform shores
Historically the finite volume methods have been developed for the numerical integration of conservation laws. In this study we present some recent results on the application of such schemes to…
Denys Dutykh, Theodoros Katsaounis, Dimitrios MitsotakisMar 6, 2011
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Lorentz-Abraham-Dirac vs Landau-Lifshitz radiation friction force in the ultrarelativistic electron interaction with electromagnetic wave (exact solutions)
When the parameters of electron - extreme power laser interaction enter the regime of dominated radiation reaction, the electron dynamics changes qualitatively. The adequate theoretical description…
Sergei V. Bulanov, Timur Zh. Esirkepov, Masaki Kando et al.Mar 3, 2011
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The Catenary Revisited: From Newtonian Strings to Superstrings
The dynamics of extended objects, such as strings and membranes, has attracted more attention in the past decades since the fundamental objects introduced in high-energy physics are no longer…
David de Klerk, Jeff Murugan, Jean-Philippe UzanMar 3, 2011
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Plasma-like Vacuum in Podolsky Regularized Classical Electrodynamics
We analyze wave propagation in the vacuum of Podolsky regularized electrodynamics. Two kinds of waves were found in the theory: the traditional non-dispersive waves of Maxwell electrodynamics, and a…
Roberto Baginski B. SantosMar 2, 2011
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On the experimental determination of the one-way speed of light
In this contribution the question of the isotropy of the one-way speed of light from an experimental perspective is addressed. In particular, we analyze two experimental methods commonly used in its…
Israel PerezFeb 22, 2011
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The One Dimensional Damped Forced Harmonic Oscillator Revisited
In this paper we give a general solution to the problem of the damped harmonic oscillator under the influence of an arbitrary time-dependent external force. We employ simple methods accessible for…
G. Flores-Hidalgo, F. A. BaroneFeb 21, 2011
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The Off-Shell Electromagnetic T-matrix: momentum-dependent scattering from spherical inclusions with both dielectric and magnetic contrast
The momentum- and frequency-dependent T-matrix operator for the scattering of electromagnetic waves by a dielectric/conducting and para- or diamagnetic sphere is derived as a Mie-type series, and…
Yves-Patrick Pellegrini, Pascal Thibaudeau, Brian StoutFeb 14, 2011
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Energy transfer process in gas models of Lennard-Jones interactions
We perform simulations to investigate how the energy carried by a molecule transfers to others in an equilibrium gas model. For this purpose we consider a microcanonical ensemble of equilibrium gas…
Jinghua Yang, Yong Zhang, Jiao Wang et al.Feb 14, 2011
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Metamaterial-Enhanced Coupling between Magnetic Dipoles for Efficient Wireless Power Transfer
Non-radiative coupling between conductive coils is a candidate mechanism for wireless energy transfer applications. In this paper, we propose a power relay system based on a near-field metamaterial…
Yaroslav Urzhumov, David R. SmithFeb 11, 2011
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Micromechanics analysis of thermal expansion and thermal pressurization of a hardened cement paste
The results of a macro-scale experimental study of the effect of heating on a fluid-saturated hardened cement paste are analysed using a multi-scale homogenization model. The analysis of the…
Siavash GhabezlooFeb 7, 2011
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Polarization-dependent ponderomotive gradient force in a standing wave
The ponderomotive force is derived for a relativistic charged particle entering an electromagnetic standing wave with a general three-dimensional field distribution and a nonrelativistic intensity,…
P. W. Smorenburg, J. H. M. Kanters, A. Lassise et al.Feb 2, 2011
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Probabilistic interpretation of mechanical motion
Probabilistic approach to the description of translational motion of macrobodies indicates the emergence of additional order effects oriented in the direction of motion of the body
V. I. Klapchenko, Y. M. TeslyaFeb 1, 2011
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Renormalized kinetic theory of classical fluids in and out of equilibrium
We present a theory for the construction of renormalized kinetic equations to describe the dynamics of classical systems of particles in or out of equilibrium. A closed, self-consistent set of…
Jerome DaligaultFeb 1, 2011
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The Peculiar Status of the Second Law of Thermodynamics and the Quest for its Violation
Even though the second law of thermodynamics holds the supreme position among the laws of nature, as stated by many distinguished scientists, notably Eddington and Einstein, its position appears to…
Germano D'AbramoJan 26, 2011
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On the cutoff frequency of clarinet-like instruments. Geometrical versus acoustical regularity
A characteristic of woodwind instruments is the cutoff frequency of their tone-hole lattice. Benade proposed a practical definition using the measurement of the input impedance, for which at least…
Elise Moers, Jean KergomardJan 25, 2011
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An ab initio derivation of the electromagnetic fields of a point charge in arbitrary motion
Electromagnetic fields of an accelerated charge are derived from the first principles using Coulomb's law and the relativistic transformations. The electric and magnetic fields are derived first…
Ashok K. SingalJan 25, 2011
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End conditions of piano strings
The end conditions of piano strings can be approximated by the input admittance at the bridge. Proper measurements of this value are therefore required. A method of validation of admittance…
Kerem Ege, Antoine ChaigneJan 24, 2011
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Nonlinear magnetoinductive transmission lines
Power transmission in one-dimensional nonlinear magnetic metamaterials driven at one end is investigated numerically and analytically in a wide frequency range. The nonlinear magnetic metamaterials…
Nikos Lazarides, Vassilis Paltoglou, G. P. TsironisJan 13, 2011
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Finite volume schemes for Boussinesq type equations
Finite volume schemes are commonly used to construct approximate solutions to conservation laws. In this study we extend the framework of the finite volume methods to dispersive water wave models, in…
Denys Dutykh, Theodoros Katsaounis, Dimitrios MitsotakisJan 10, 2011
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