N-body linear force law allowing analytic solutionsWe present a pair-wise force law in a system of N particles that produces analytic solutions for arbitrary number of particles, masses, and initial conditions. Each pair of particles interacts via a…Joseph West, Sean P. Bartz·Jul 2, 2024SaveLearn
The Electric Force Between Two Straight Parallel Resistive Wires Carrying DC-Currents in the Asymptotic Limit of Infinitely Thin WiresDuring the years 1948-2019 the ampere was defined via the magnetic force between two long thin parallel wires carrying stationary current. However, if a stationary current flows through a resistive…Udo Ausserlechner·Jul 2, 2024SaveLearn
Sensitivity fields and parameter estimation from dielectric objectsThe quantitative phase image formation process is posed as a problem of parameter estimation from intensity measurements. This approach is inclusive of traditional pixel-oriented imaging, where the…George Barbastathis·Jul 1, 2024SaveLearn
A convolutional model for estimating the junction temperatures of SiC MOSFET transistorsThe junction temperature is a very important parameter for monitoring power electronics converters based on MOSFET transistors. They offer the possibility of switching at relatively higher…Ali El Arabi, Denis Maillet, Nicolas Blet et al.·Jul 1, 2024SaveLearn
Electrostatic potential of a uniformly charged disk through Green's theoremAll existing derivations of the electrostatic potential of a uniformly charged disk are technically rather involved. In an old and now almost forgotten publication, Duffin and McWhirter proposed a…Alina E. Sagaydak, Zurab K. Silagadze·Jun 29, 2024SaveLearn
Chaos in undamped, forced oscillators via stroboscopic mapsNon-linear dynamics is not a usually covered topic in undergraduate physics courses. However, its importance within classical mechanics and the general theory of dynamical systems is unquestionable.…Ronaldo S. S. Vieira, Luiz H. R. Daniel, Marcus A. M. de Aguiar·Jun 29, 2024SaveLearn
Geometric heat pumping under continuous modulation in thermal diffusionBerry (geometric) phase has attracted a lot of interest and permeated into all aspects of physics including photonics, crystal dynamics, electromagnetism and heat transfer since it was discovered,…Hao-Ran Yan, Pei-Chao Cao, Yan-Xiang Wang et al.·Jun 27, 2024SaveLearn
Modeling the amplitude and energy decay of a weakly damped harmonic oscillator using the energy dissipation rate and a simple trickWe demonstrate how to derive the exponential decrease of amplitude and an excellent approximation of the energy decay of a weakly damped harmonic oscillator without solving the associated equation of…Karlo Lelas, Robert Pezer·Jun 26, 2024SaveLearn
Fracture and size effect in mechanical metamaterialsWe resort to variational methods to evaluate the asymptotic behavior of fine metamaterials as a function of cell size. To zeroth order, the metamaterial behaves as a micropolar continuum with both…J. Ulloa, M. P. Ariza, J. E. Andrade et al.·Jun 26, 2024SaveLearn
Elastic wavepackets crossing a space-time interfaceThe interaction between waves and evolving media challenges traditional conservation laws. We experimentally investigate the behavior of elastic wave packets crossing a moving interface that…Alexandre Delory, Claire Prada, Maxime Lanoy et al.·Jun 21, 2024SaveLearn
Perspective on Non-Hermitian ElastodynamicsThe manipulation of mechanical waves is a long-standing challenge for scientists and engineers, as numerous devices require their control. The current forefront of research in the control of…Johan Christensen, Michael R. Haberman, Ankit Srivastava et al.·Jun 21, 2024SaveLearn
The Paradox of the Recoil Force Acting on a Leaking Water TankIn the first part of the article, we will outline the paradoxical picture that arises when attempting to calculate the recoil force of the water leakage from a hole at the bottom of a water tank. We…Avi Marchewka, Yiftah Navot·Jun 19, 2024SaveLearn
Dynamics of Coupled Metamaterials: Acoustic Black Hole, Local Resonator & Multistable OscillatorVibration attenuation has played a crucial role in engineering structure, wherein metamaterials have found escalated usage. These structures can be cleverly built to be lightweight and have negative…Arghya Mondal·Jun 18, 2024SaveLearn
Interacting Mathieu equation, synchronization dynamics and collision-induced velocity exchange in trapped ionsRecently, large-scale trapped ion systems have been realized in experiments for quantum simulation and quantum computation. They are the simplest systems for dynamical stability and parametric…Asma Benbouza, Xiaoshui Lin, Jin Ming Cui et al.·Jun 18, 2024SaveLearn
Non-Weyl Behavior Induced by Superradiance: A Microwave Graph StudyWe study experimentally the manifestation of non-Weyl graph behavior in open systems using microwave networks. For this a coupling variation to the network is necessary, which was out of reach till…Junjie Lu, Tobias Hofmann, Hans-Jürgen Stöckmann et al.·Jun 14, 2024SaveLearn
Tellegen responses in metamaterialsTellegen medium has long been a topic of debate, with its existence being contested over several decades. It was first proposed by Tellegen in 1948 and is characterized by a real-valued cross…Qingdong Yang, Xinhua Wen, Zhongfu Li et al.·Jun 12, 2024SaveLearn
Topological water-wave structures manipulating particlesTopological wave structures, such as vortices and skyrmions, appear in a variety of quantum and classical wave fields, including optics and acoustics. In particular, optical vortices have found…Bo Wang, Zhiyuan Che, Cheng Cheng et al.·Jun 11, 2024SaveLearn
Rayleigh surface waves of extremal elastic materialsExtremal elastic materials here refer to a specific class of elastic materials whose elastic matrices exhibit one or more zero eigenvalues, resulting in soft deformation modes that, in principle,…Yu Wei, Yi Chen, Wen Cheng et al.·Jun 11, 2024SaveLearn
Using gauge invariance to symmetrize the energy-momentum tensor of electrodynamicsIt is shown that using Noether's Theorem explicitly employing gauge invariance for variations of the electromagnetic four-potential Aμ straightforwardly ensures that the resulting…Helmut Haberzettl·Jun 10, 2024SaveLearn
Classical Models of the Electron Spin -- Comparison of the Electric Current Model and the Magnetic Charge ModelFerromagnetic matter finds its microscopic origin in the intrinsic electron spin, which is considered to be a purely quantum mechanical property of the electron. To incorporate the influence of the…Bela Schulte Westhoff·Jun 9, 2024SaveLearn
Holding the fields constant: A shape-calculus approach to electromagnetic forcesUsing the mathematical theory of shape calculus as tool, we perform a rigorous investigation of the virtual work principle for the computation of electromagnetic forces in static settings. The main…Piyush Panchal, Ralf Hiptmair, Stefan Kurz·Jun 9, 2024SaveLearn
On the covariance of the d'Alembert equation: the cases of sound and lightThe covariance of the d'Alembert equation for acoustic phenomena, described by mechanical waves in one or three spatial dimensions, under Galilean transformations, is demonstrated without the…Francisco Caruso, Vitor Oguri·Jun 3, 2024SaveLearn
Hot spot as hallmark of transition from dielectric disk to ringTopological transformations of dielectric structures radically change the eigenvalues and eigenfunctions of photonic resonances. Moreover, optical effects may arise that characterize the moment of…Kirill Bronnikov, Mikhail Limonov, Nikolay Solodovchenko·Jun 3, 2024SaveLearn
Construction and Observation of Flexibly Controllable High-Dimensional Non-Hermitian Skin EffectsNon-Hermitian skin effect (NHSE) is one of the most fundamental phenomena in non-Hermitian physics. Although it is established that one-dimensional NHSE originates from the nontrivial spectral…Qicheng Zhang, Yufei Leng, Liwei Xiong et al.·Jun 1, 2024SaveLearn
Rocket motionThe motion of rockets is part of the study devoted to the motion of variable mass systems. Notably those in which the mass leaves permanently the considered system. Rockets are propelled forward by…Adel Alameh·May 29, 2024SaveLearn