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Classical Physics papers — page 146

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Theory of water and charged liquid bridges
The phenomena of liquid bridge formation due to an applied electric field is investigated. A new solution for the charged catenary is presented which allows to determine the static and dynamical…
Klaus MorawetzJul 3, 2011
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Local Runup Amplification By Resonant Wave Interactions
Until now the analysis of long wave runup on a plane beach has been focused on finding its maximum value, failing to capture the existence of resonant regimes. One-dimensional numerical simulations…
Themistoklis Stefanakis, Frédéric Dias, Denys DutykhJul 1, 2011
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Kramers-Kronig, Bode, and the meaning of zero
The implications of causality, as captured by the Kramers-Kronig relations between the real and imaginary parts of a linear response function, are familiar parts of the physics curriculum. In 1937,…
John BechhoeferJun 30, 2011
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Charged-particle oscillation in DC voltage biased plane-parallel conductors
The phenomenon of charged-particle oscillation in DC voltage biased plane-parallel conductors is discussed. Traditionally accepted mechanism for explaining the oscillatory behavior of charged…
Sung Nae ChoJun 28, 2011
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Relaxation of ideal classical particles in a one-dimensional box
We study the deterministic dynamics of non-interacting classical gas particles confined to a one-dimensional box as a pedagogical toy model for the relaxation of the Boltzmann distribution towards…
Florian Gebhard, Kevin zu MuensterJun 27, 2011
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Repeaters in relativistic communications
The communication efficiency between a transmitter and a receiver is affected by motion and the presence of gravitational fields. We study the effect of regenerating the signal in intermediate…
Juan Carlos Garcia-Escartin, Pedro Chamorro-PosadaJun 21, 2011
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Revisiting special relativity: A natural algebraic alternative to Minkowski spacetime
Minkowski famously introduced the concept of a space-time continuum in 1908, merging the three dimensions of space with an imaginary time dimension i c t , with the unit imaginary producing the…
James M. Chappell Nicolangelo Iannella, Azhar Iqbal, Derek AbbottJun 19, 2011
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A Novel Device for Generating Terahertz Radiation Pulses
The dynamics of a core-shell structured ionized particle between two parallel conductor plates, which is biased with a direct current (DC) voltage, have been investigated. It has been found that an…
Sung Nae ChoJun 13, 2011
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Conditions for the feasibility of multiple rolling for mechanical systems with multiple contact points
We illustrate a theoretical procedure determining necessary conditions for which simultaneous pure rolling kinetic constraints acting on a mechanical system can be fulfilled. We also analyze the…
Stefano PasqueroJun 11, 2011
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Slipping and Rolling on an Inclined Plane
In the first part of the article using a direct calculation two-dimensional motion of a particle sliding on an inclined plane is investigated for general values of friction coefficient (μ). A…
Cina Aghamohammadi, Amir AghamohammadiJun 11, 2011
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Modulation Instability of Ultrashort Pulses in Quadratic Nonlinear Media beyond the Slowly Varying Envelope Approximation
We report a modulational instability (MI) analysis of a mathematical model appropriate for ultrashort pulses in cascaded quadratic-cubic nonlinear media beyond the so-called slowly varying envelope…
Amarendra K. Sarma, Parvendra KumarJun 10, 2011
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How to be causal: time, spacetime, and spectra
I explain a simple definition of causality in widespread use, and indicate how it links to the Kramers Kronig relations. The specification of causality in terms of temporal differential eqations then…
Paul KinslerJun 9, 2011
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Inductively Coupled Augmented Railgun
We derive the non-linear dynamical equations for an augmented electromagnetic railgun, whose augmentation circuit is inductively coupled to the gun circuit. We solve these differential equations…
Thomas B. Bahder, William C. McCorkleJun 9, 2011
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Frictional damping in radiative electrodynamics and its scaling to macroscopic systems
Radiation force in Abraham-Lorentz-Dirac equation is revisited for possible signature of irreversible action in the dynamics. The analysis shows that the classical electron can dissipate out a…
D. DasJun 6, 2011
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The VOLNA code for the numerical modelling of tsunami waves: generation, propagation and inundation
A novel tool for tsunami wave modelling is presented. This tool has the potential of being used for operational purposes: indeed, the numerical code is able to handle the complete life-cycle…
Denys Dutykh, Raphaël Poncet, Frédéric DiasJun 6, 2011
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Snell's law for particles moving on piecewise homogeneous two dimensional surface with linear boundaries
We study the properties of least time trajectories for particles moving on a two dimensional surface which consists of piecewise homogeneous regions. The particles are assumed to move with different…
Pratik Mandrekar, Toby JosephJun 4, 2011
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Self-injection-locked magnetron as an active ring resonator side coupled to a waveguide with a delayed feedback loop
The theoretical analysis and numerical simulations of the magnetron operation with a feedback loop were performed assuming that the delay of the electromagnetic wave propagating in the loop is…
Y. P. Bliokh, Ya. E. Krasik, J. FelsteinerJun 2, 2011
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Derivation of dissipative Boussinesq equations using the Dirichlet-to-Neumann operator approach
The water wave theory traditionally assumes the fluid to be perfect, thus neglecting all effects of the viscosity. However, the explanation of several experimental data sets requires the explicit…
Denys Dutykh, Olivier GoubetMay 30, 2011
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A phenomenology condition other than zero resistance and a possible pairing mechanism of holes-electrons for superconductivity
The underlying mechanism of unconventional high-temperature superconductivity is a great challenge to condensed matter physics. However, zero dissipation of electric current is the commonness of…
Weilong SheMay 28, 2011
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Electromagnetic inertia, reactive energy, and energy flow velocity
In a recent paper titled "Coherent electromagnetic wavelets and their twisting null congruences," I defined the local inertia density (I), reactive energy density (R), and energy flow…
Gerald KaiserMay 24, 2011
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Simulating a guitar with a conventional sonometer
Musical acoustics is an interesting sub-field of physics which is usually able to engage students in a dual perspective, by combining science and art together. The physics principles involved in most…
Zily Burstein, Christina M. Gower, Gabriele U. VarieschiMay 23, 2011
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Radiative damping: a case study
We are interested in the motion of a classical charge coupled to the Maxwell self-field and subject to a uniform external magnetic field, B. This is a physically relevant, but difficult dynamical…
Herbert SpohnMay 23, 2011
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Length contraction in Very Special Relativity
Glashow and Cohen claim that many results of special theory of relativity (SR) like time dilation, relativistic velocity addition, etc, can be explained by using certain proper subgroups, of the…
Biplab Dutta, Kaushik BhattacharyaMay 21, 2011
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Radiation from a charged particle flying through a dielectric ball
The radiation from a relativistic charged particle uniformly moving through the centre of a dielectric ball is investigated. Analytical expressions for spectral and spectral-angular distributions of…
Svetlana R. ArzumanyanMay 18, 2011
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Transition from static to kinetic friction: Insights from a 2D model
We describe a 2D spring-block model for the transition from static to kinetic friction at an elastic slider/rigid substrate interface obeying a minimalistic friction law (Amontons-Coulomb). By using…
Jørgen Trømborg, Julien Scheibert, David Skålid Amundsen et al.May 17, 2011
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