Scalar-Longitudinal Radiation in Extended Electrodynamics with Multipole Theory and a Compensated Source ModelExtended electrodynamics (EED) leaves the Lorenz gauge condition unimposed and treats the scalar combination C=∇·A+c-2∂Φ/∂ t as a dynamical field. For a conserved…Natan Rentzber·Aug 19, 2026·Top 86%SaveLearn
Modeling Newtonian noise of acoustic origin in the Virgo gravitational wave detectorSince the first gravitational-wave (GW) detection of September 14th 2015 and with hundreds of gravitational-wave sources identified by the LIGO-Virgo-KAGRA network, GW have produced many important…Lionel Maurin, François Gautier, Maël Brun et al.·Aug 17, 2026SaveLearn
A stop to field line misconceptionsFor two hundred years - ever since Faraday's first conception of the field lines - hearts and minds of students have been pervaded by erroneous and unsubstantiated claims about these well defined…Petar Žugec, Ivica Friščić, Mihael Makek et al.·Aug 14, 2026·Top 75%SaveLearn
How much work can you get by removing weights from a piston?In thermodynamics, reversible adiabatic expansion can be understood as a limit of stepwise irreversible processes. We make this idea concrete by studying an ideal gas in an insulating cylinder with a…Joshua Samani·Aug 14, 2026·Top 30%SaveLearn
Huygens' principle and field equivalence relations for cylindrical enclosing surfacesFrequency-domain Huygens' principle and equivalence relations for an infinitely long cylindrical surface enclosing the field sources or scatterers are addressed. Assuming the harmonic dependence…Andrey Osipov, Sergei Tretyakov·Aug 14, 2026·Top 15%SaveLearn
Critical damping in linear system with two degrees of freedom: surprises and pitfallsIn this Brief Communication, we establish the notion of critical damping for generic two-degree-of-freedom system. For given set of masses and stiffnesses, the critical damping corresponds to the…Maxim D. Arnold, Oleg V. Gendelman, Vadim Zharnitsky·Aug 9, 2026SaveLearn
Solving the Dissipation Inequality not as a constitutive restrictionA solution procedure is formulated and solved for treating the nonlinear Dissipation Inequality as a constraint equation within continuum mechanics, and allowing for incomplete knowledge of…Maximiliano Larrain Silva, Amit Acharya·Aug 6, 2026SaveLearn
Spectral taxonomy for quartic systems: fundamental clock, parity, and continuumA symmetric quartic potential is a physics motif with incredibly expansive applications, ranging from broadband energy harvesters, quantum tunneling in molecules and the early universe, to…Teepanis Chachiyo·Aug 4, 2026SaveLearn
Universal spectral structure in pendulum-like systemsPendulum-like dynamics is a universal motif across many areas of physics, underlying systems ranging from classical nonlinear oscillators to superconducting qubits and cold-atom tunneling platforms.…Teepanis Chachiyo·Aug 4, 2026SaveLearn
Wave Scattering at temporal interfaces with spatial-translation-symmetry mismatchTemporal interfaces enable wave manipulation through broken time-translation symmetry, but conventional formulations generally assume that spatial-translation symmetry is preserved across the…Cong Chen, Kaijun Yi, Guoliang Huang et al.·Aug 3, 2026SaveLearn
Constructive Euclidean Proofs of the Equivalence Between Keplerian Orbits and Newton's Inverse-Square LawKepler's first two laws state that a planet moves on an ellipse with the Sun at a focus and sweeps out equal areas in equal times (constant areal speed). In the Principia, Newton showed how these…Changchun Shi·Aug 2, 2026SaveLearn
Variational Gaussian Wave-Packet Dynamics from Constrained Classical Trajectory BundlesVariational Gaussian wave-packet dynamics is usually obtained by restricting quantum evolution to Gaussian wave packets. We instead construct finite-N dynamics for a labeled bundle of classical…Taisuke Hasegawa·Aug 2, 2026SaveLearn
Conserved Quantities of Optimal Continuous-Thrust Trajectories in A Central Gravitational FieldThis paper presents a mathematical derivation for three new conserved quantities in the motion of spacecraft on optimal continuous-thrust trajectories in a central gravitational field. The process…Aimar Negrete, Ossama Abdelkhalik·Aug 1, 2026SaveLearn
The moving bar problem: an electromechanical damped oscillatorThe conducting bar sliding on rails through a uniform magnetic field is a standard textbook illustration of Faraday's law, almost always solved assuming the magnetic field produced by the induced…Carlos E. Alvarez·Aug 1, 2026SaveLearn
Covariant formulation of electrodynamics in isotropic media revisitedThis paper resolves a persistent ambiguity regarding the covariant formulation of electrodynamics in a vacuum, as well as of Minkowski's electrodynamics of moving isotropic media. By analyzing a…D V Redžić·Aug 1, 2026SaveLearn
Revisiting Stress Analysis in a Three-Dimensional Elastic Hollow Sphere under Uniaxial Compression via the Inverse Laplace Transform Expressions within an Elastodynamic FrameworkThe stress analysis of a three-dimensional elastic hollow sphere subjected to uniaxial compression is revisited, employing an elastodynamic framework. Through the application of the Laplace…Satoshi Takada, Shintaro Hokada·Jul 31, 2026SaveLearn
A Symmetry-First Elementary Derivation of the Lorentz TransformationWe present a symmetry-first derivation of the Lorentz transformation in which the speed of light is not imposed at the outset. The argument proceeds in three stages. First, spacetime homogeneity…Nianjun Tan·Jul 31, 2026SaveLearn
The Maxwell Conjecture is FalseWe exhibit a configuration of five point charges in Euclidean space whose electrostatic potential admits at least 24 critical points all of which are non-degenerate. Maxwell's conjecture that the…Philip Arathoon, Gavin Ball, Matthew D. Kvalheim·Jul 29, 2026SaveLearn
A review of the classical Doppler effect based on the mathematical description of the phase functionThe classical Doppler effect is explicitly reformulated by determining the phase function associated with a moving source. General expressions for frequency shift and aberration are derived and…Óscar Alejos, José Mar\'\ia Muñoz·Jul 28, 2026SaveLearn
Multibranched parametric resonance and swallowtail catastrophe in electromechanical oscillators with nonlinear frictionParametric resonance underpins the operation of a wide range of physical systems, from nanomechanical resonators to quantum-information systems and Ising machines. As an archetypal class of…P. Y. Chan, L. Huang, X. Dong et al.·Jul 27, 2026SaveLearn
Spatiotemporal Vortex Rings Induced by Spatiotemporal CouplingVortices and vortex rings are topological structures that arise in various physical systems. However, the generation of spatiotemporal vortices (STVs) and vortex rings (STVRs) has so far relied on…Zhiling Zhou, Wei Zhong, Tong Fu et al.·Jul 23, 2026SaveLearn
The Influence of Interior Noise on Just-Noticeable Speed Differences in Conventional and Electric VehiclesElectric vehicles (EVs) and internal-combustion-engine vehicles (ICEVs) differ fundamentally in their in-cabin acoustics, notably the attenuation or absence of engine-order content. Prior work…Zhenxian Li, Etienne Parizet, Claudio Colangeli·Jul 21, 2026SaveLearn
Three-Dimensional Bubbly Flow Measurement Using Event-based Vision Sensor CamerasA three-camera Event-Based Vision Sensor (EVS) system is employed to perform three-dimensional measurements of bubble motion, morphology, and bubbleÐbubble interactions. The multi-EVS configuration…A Al Brahim, K Rajamanickam, B Lecordier et al.·Jul 21, 2026SaveLearn
Remarks on Galilean electromagnetismIt is shown that equations describing the Galilean electromagnetism in the presence of sources hold invariant under the l-conformal Galilei group for an arbitrary (half)integer parameter l. The group…Anton Galajinsky·Jul 20, 2026SaveLearn
Surface charge density of current-carrying conductors: An exact analytical solution for infinitely thin wires of arbitrary shapeAn exact asymptotic expression is derived for the surface charge density associated with a steady current in closed loops or wire segments of infinitesimal cross section connected to a battery.…Roberto Merlin·Jul 13, 2026SaveLearn