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Classical Physics papers — page 170

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Absence of a consistent classical equation of motion for a mass-renormalized point charge
The restrictions of analyticity, relativistic (Born) rigidity, and negligible O(a) terms involved in the evaluation of the self electromagnetic force on an extended charged sphere of radius…
Arthur D. YaghjianMay 1, 2008
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Compressible Fluids: the discontinuity of the vorticity vector on a shock wave in thermodynamical variables
The discontinuity of the vorticity is written as a function of the vector T grad s, (where T is the temperature and s the specific entropy). The expression is obtained thanks to potential equations…
Henri GouinMay 1, 2008
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The dynamics of a charged particle
Using physical arguments, I derive the physically correct equations of motion for a classical charged particle from the Lorentz-Abraham-Dirac equations (LAD) which are well known to be physically…
Fritz RohrlichApr 29, 2008
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Optimal driving waveform for overdamped, adiabatic rocking ratchets
As a first step in the project of ratchet optimisation, the optimal driving waveform among a wide class of admissible functions for an overdamped, adiabatic rocking ratchet is shown to be…
Steven J. LadeApr 28, 2008
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Kinematics of flows on curved, deformable media
In this article, we first investigate the kinematics of specific geodesic flows on two dimensional media with constant curvature, by explicitly solving the evolution (Raychaudhuri) equations for the…
Anirvan Dasgupta, Hemwati Nandan, Sayan KarApr 25, 2008
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Considerations for Anderson-Bridge Experiment
Various issues concerned with the design and sensitivity of the Anderson bridge are discussed. We analyse the circuit using the tools of Network Analysis to determine the conditions under which the…
P. Arun, Kuldeep Kumar, MamtaApr 24, 2008
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Energy distributions and effective temperatures in the packing of elastic sheets
The packing of elastic sheets is investigated in a quasi two-dimensional experimental setup: a sheet is pulled through a rigid hole acting as a container, so that its configuration is mostly…
Stephanie Deboeuf, Mokhtar Adda-Bedia, Arezki BoudaoudApr 19, 2008
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Calculations of Trapping and Desorption in Heavy Atom Collisions with Surfaces
Calculations are carried out for the scattering of heavy rare gas atoms with surfaces using a recently developed classical theory that can track particles trapped in the physisorption potential well…
Guoqing Fan, J. R. MansonApr 17, 2008
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The decay of magnetohydrodynamic turbulence in a confined domain
The effect of non periodic boundary conditions on decaying two-dimensional magnetohydrodynamic turbulence is investigated. We consider a circular domain with no-slip boundary conditions for the…
Salah Neffaa, Wouter Bos, Kai SchneiderApr 17, 2008
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Calculations of the Energy Accommodation Coefficient for Gas-Surface Interactions
Calculations are carried out for the energy accommodation coefficient at a gas-surface interface using a recently developed classical mechanical theory of atom-surface collisions that includes both…
Guoqing Fan, J. R. MansonApr 14, 2008
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"D-Dimond1", Prototype Antenna RGA-05
At the present thesis a prototype antenna is studied. In chapter 1 the antenna's geometry is selected with the supervisor's assistance and its geometrical and dimensional characteristics are…
D. C. IliakisApr 10, 2008
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Theory of Direct Scattering, Trapping and Desorption in Atom-Surface Collisions
When gas atoms or molecules collide with clean and ordered surfaces, under many circumstances the energy-resolved scattering spectra exhibit two clearly distinct features due to direct scattering and…
Guoqing Fan, J. R. MansonApr 10, 2008
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A homage to E.C.G.Sudarshan: Superluminal objects and waves (An updated overview of the relevant experiments)
This writing has been prepared on the occasion of the 75th birthday of E.C.George Sudarshan, who (besides the originator of the V-A theory for weak-forces, of quantum optics --the quantum…
Erasmo RecamiApr 9, 2008
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Electron Beam Instability in Left-Handed Media
We predict that two electron beams can develop an instability when passing through a slab of left-handed media (LHM). This instability, which is inherent only for LHM, originates from the backward…
Yury P. Bliokh, Sergey Savel'ev, Franco NoriApr 8, 2008
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Classical dynamics of a charged particle in a laser field beyond the dipole approximation
The classical dynamics of a charged particle traveling in a laser field modeled by an elliptically polarized monochromatic electromagnetic plane wave is discussed within the time reparametrization…
Paul Jameson, Arsen KhvedelidzeApr 4, 2008
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Time scales separation for dynamo action
The study of dynamo action in astrophysical objects classically involves two timescales: the slow diffusive one and the fast advective one. We investigate the possibility of field amplification on an…
Emmanuel Dormy, David Gerard-VaretApr 1, 2008
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What our world might be like (as alternative to Minkowski space-time with Poincare group of motion)
It is proposed four dimensional curved space-time with de-Sitter group of motion. Theory contain free dimension constants of length, impulse and action. Under infinite values of these parameters…
A. N. LeznovMar 29, 2008
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Is turbulent mixing a self convolution process ?
Experimental results for the evolution of the probability distribution function (PDF) of a scalar mixed by a turbulence flow in a channel are presented. The sequence of PDF from an initial skewed…
Antoine Venaille, Joel SommeriaMar 28, 2008
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Probability distribution of the resistance of a random network
The probability density of the resistance of a two dimensional rectangular network between two conducting plates is calculated. The nodes form an M by N lattice, and each edge has a random…
Thomas Callaghan, Joseph B. KellerMar 28, 2008
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Modeling semi-conductor thermal properties. The dispersion role
We study heat transport in semiconductor nanostructures by solving the Boltzmann Transport Equation (BTE) by means of the Discrete Ordinate Method (DOM). Relaxation time and phase and group velocitiy…
Damian Terris, Karl Joulain, David Lacroix et al.Mar 27, 2008
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A different derivation of the acceleration of a particle in a non-inertial reference frame
A new derivation of the acceleration of a particle in a non-inertial reference frame, including the Coriolis effect, is developed using the geometry of complex numbers in the complex plane.
Eli LanseyMar 26, 2008
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Is Planck's Constant h a "Quantum" Constant?
One should not confuse a physical constant with a theory which incorporates the constant. Planck's constant h can appear in classical or quantum theories.
Timothy H. BoyerMar 25, 2008
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Invariance Properties of Inviscid Fluids of Grade n
Fluids of grade n are continuous media in dynamic changes of phases avoiding the surfaces of discontinuity and representing the capillary layers in liquid-vapour interfaces. We recall the…
Pierre Casal, Henri GouinMar 21, 2008
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In the quest for a global (super)symmetry breaking mechanism: an extension of the vibronic mixing process to superpartners
We propose a global symmetry-breaking mechanism based on an extension of the vibronic (cooperative Jahn-Teller) effects (comprising electron-phonon superpartners) to generalize them into…
Mladen GeorgievMar 20, 2008
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Work and energy in inertial and non inertial reference frames
It is usual in introductory courses of mechanics to develop the work and energy formalism from Newton's laws. On the other hand, literature analyzes the way in which forces transform under a…
Rodolfo A. Diaz, William J. Herrera, Diego A. ManjarresMar 18, 2008
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