Reply to Comment on "Doppler signature in electrodynamic retarded potentials"Calin Galeriu(CG) has commented [1] about our manuscript, "Doppler signature in electrodynamic retarded potentials" [2], that must be properly addressed, amending at the same time of notation…Giovanni Perosa, Simone Di Mitri, William A. Barletta et al.·Jan 10, 2024SaveLearn
Non-Divergent Spinning Substructures Near Acoustic Field NodesIn this work, we examine the extraordinary behavior of polarization and spin angular momentum (AM) density in the vicinity of longitudinal field zeros in three-dimensional monochromatic acoustic…Andrew Kille, Andrei Afanasev·Jan 9, 2024SaveLearn
Proof of the Nernst heat theoremThe Nernst heat theorem is probed from purely thermodynamic arguments connected with the second law of thermodynamics, and alien to the vanishing of the specific heats, or to the unattainability of…José-María Martín-Olalla·Jan 8, 2024SaveLearn
Reply to Comment on "Covariant formulation of electrodynamics in isotropic media''This note contains my response to the comment written by J. Franklin on my paper ``Covariant formulation of electrodynamics in isotropic media''.Palash B. Pal·Jan 7, 2024SaveLearn
Geometrically constrained particle dynamics revisited: Equation of motion in terms of the normal curvature of the constraint manifoldWe revisit the problem of the particle dynamics subject to a geometric holonomic constraint of codimension 1 in spatial dimensions d =2 and 3. In the absence of dissipation, we show that by solving…Wei-Han Hsiao·Jan 5, 2024SaveLearn
Effective surface forces and non-coherent interfaces within the reduced relaxed micromorphic modeling of finite-size mechanical metamaterialsThis paper introduces for the first time the concepts of non-coherent interfaces and microstructure-driven interface forces in the framework of micromorphic elasticity. It is shown that such concepts…L. A. Perez Ramirez, F. Erel-Demore, G. Rizzi et al.·Jan 3, 2024SaveLearn
A proposal for a minimal model of free reedIn this paper we propose a minimal model for free reeds taking into account the significant phenomena. This free reed model may be used to build models of free reed instruments which permit numerical…Laurent Millot·Jan 3, 2024SaveLearn
Mechanical Optimization of Skateboard PumpingSkateboarders perform a reciprocating motion on a curved ramp, called pumping, by moving their bodies up and down perpendicular to the ramp's surface. We propose a simple mechanical model for…Florian Kogelbauer, Shinsuke Koyama, Daniel E. Callan et al.·Dec 29, 2023SaveLearn
Recovering seldom-used theorems of vector calculus and their application to problems of electromagnetismIn this paper, we use differential forms to prove a number of theorems of integral vector calculus that are rarely found in textbooks. Two of them, as far as the author knows, have not been published…Antonio Perez-Garrido·Dec 26, 2023SaveLearn
Jacobi integral: A real-world application of the Lagrangian formulationThe applicability of advanced classical mechanics (viz., the Lagrangian and/or Hamiltonian approaches) to real-world problems may not always seem straightforward, despite the mathematical rigor and…Jeremy A. Riousset, Manasvi Lingam·Dec 25, 2023SaveLearn
Internal dissipation in the tennis racket effectThe phenomenon known as the tennis racket effect is observed when a rigid body experiences unstable rotation around its intermediate axis. In free space, this leads to the Dzhanibekov effect, where…J. A. de la Torre, Pep Español·Dec 24, 2023SaveLearn
Characteristic Modes of Nonreciprocal StructuresThe scattering formulation of characteristic mode decomposition is utilized to extend modal analysis to lossless scatterers breaking time-reversal symmetry. This enables characteristic modes analysis…Niklas Wingren, Daniel Sjöberg, Mats Gustafsson et al.·Dec 22, 2023SaveLearn
Explicit form for the most general Lorentz transformation revisitedExplicit formulae for the 4× 4 Lorentz transformation matrices corresponding to a pure boost and a pure three-dimensional rotation are very well-known. Significantly less well-known is the…Howard E. Haber·Dec 20, 2023SaveLearn
Covariant field lines: a geometrical approach to electrodynamicsThis paper revisits the geometric foundations of electromagnetic theory, by studying Faraday's concept of field lines. We introduce "covariant electromagnetic field lines," a novel…Yaron Hadad, Ido Kaminer, Avshalom Elitzur et al.·Dec 16, 2023SaveLearn
Simple Reciprocal Electric Circuit Exhibiting Exceptional Point of DegeneracyAn exceptional point of degeneracy (EPD) occurs when both the eigenvalues and the corresponding eigenvectors of a square matrix coincide and the matrix has a nontrivial Jordan block structure. It is…Kasra Rouhi, Filippo Capolino, Alexander Figotin·Dec 12, 2023SaveLearn
Asymptotical dynamics of askew-polarized spinning top under the radiation reaction torqueRotary dynamics of polarized composite particles as dipole rigid bodies is considered. It is described the Euler equations singularly perturbed by the radiation reaction torque. The Schott term is…Askold Duviryak·Dec 11, 2023SaveLearn
Emergent Error Correcting States in Networks of Nonlinear OscillatorsNetworks of nonlinear oscillators can exhibit complex collective behaviour ranging from synchronised states to chaos. Here, we simulate the dynamics of three coupled Duffing oscillators whose…Xiaoya Jin, Christopher G. Baker, Erick Romero et al.·Dec 7, 2023SaveLearn
A consistent derivation of soil stiffness from elastic wave speedsElastic wave speeds are fundamental in geomechanics and have historically been described by an analytic formula that assumes linearly elastic solid medium. Empirical relations stemming from this…David M. Riley, Itai Einav, François Guillard·Dec 4, 2023SaveLearn
Split ring versus Möbius strip: topology and curvature effectsThe influence of the topology and curvature of objects on photonic properties represents an intriguing fundamental problem from cosmology to nanostructure physics. The classical topological…Mikhail Bochkarev, Nikolay Solodovchenko, Kirill Samusev et al.·Dec 2, 2023SaveLearn
The magnetic field does not perform work -- or does it?We investigate the question discussed in the literature as to whether the magnetic field can perform work using two models that describe interacting magnetic dipoles. In the first model, the dipoles…Heinz-Jürgen Schmidt, Thomas Bröcker·Dec 2, 2023SaveLearn
Suppression of the Talbot effect in Fourier transform acousto-optic imagingWe report on the observation and correction of an imaging artifact attributed to the Talbot effect in the context of acousto-optic imaging using structured acoustic waves. When ultrasound waves are…Maïmouna Bocoum, François Figliolia, Jean-Pierre Huignard et al.·Dec 1, 2023SaveLearn
Potentials and fields of a charge set suddenly from rest into uniform motionThe fact that electromagnetic effects propagate at the speed of light suggests how the Lorenz-gauge scalar and vector potentials of a uniformly moving point charge must be modified when the charge…V. Hnizdo, G. Vaman·Nov 29, 2023SaveLearn
Parametric approximations of fast close encounters of the planar three-body problem as arcs of a focus-focus dynamicsA gravitational close encounter of a small body with a planet may produce a substantial change of its orbital parameters which can be studied using the circular restricted three-body problem. In this…Massimiliano Guzzo·Nov 28, 2023SaveLearn
A statistical mechanical analysis on the possibility of achieving fair cylindrical diceMany have dedicated their time trying to determine the ideal conditions for a cylinder to have equal probabilities of falling with one of its faces facing upwards or on its side. However, to this…M. N. C. Brustelo, M. M. Vivaldi, F. Marques·Nov 27, 2023SaveLearn
Why the controversy over displacement currents never ends?Displacement current is the last piece of the puzzle of electromagnetic theory. Its existence implies that electromagnetic disturbance can propagate at the speed of light and finally it led to the…Masao Kitano·Nov 27, 2023SaveLearn