Observation of the Exceptional Skin Effect on a Non-Hermitian Flat bandFlat band and non-Hermitian are both significant conceptions in modern physics. In this study, we delve into the behaviours of flat bands in non-Hermitian systems, focusing on the interplay between…Dongyi Wang, Ruoyang Zhang, Chinghua Lee et al.·Dec 26, 2024SaveLearn
Nonlinear Cauchy ElasticityMost theories and applications of elasticity rely on an energy function that depends on the strains from which the stresses can be derived. This is the traditional setting of Green elasticity, also…Arash Yavari, Alain Goriely·Dec 22, 2024SaveLearn
Newton's algorithm for discrete classical dynamicsA recent article in J. Chem. Phys. argues that the two algorithms, the velocity-Verlet, and position-Verlet integrators, commonly used in Molecular Dynamics (MD) simulations, are different…Søren Toxvaerd·Dec 21, 2024SaveLearn
Friction Induced Energy GainIn this work we show how friction enables a non-linear energy transfer in a slow-fast Hamiltonian system. We first introduce a paradigmatic system consisting of a weakly coupled fast and slow…Diego M Fieguth·Dec 20, 2024SaveLearn
On the invariant integration of a vector in some problems in mechanicsInvariant integration of vectors and tensors over manifolds was introduced around fifty years ago by V.N. Folomeshkin, though the concept has not attracted much attention among researchers. Although…Saad Bin Mansoor·Dec 19, 2024SaveLearn
Elastic waves in bearing raceways: the forward and inverse problemTurbines are crucial to our energy infrastructure, and ensuring their bearings function with minimal friction while often supporting heavy loads is vital. Vibrations within a bearing can signal the…Jessica J. Kent, Matheus de C. Loures, Art L. Gower·Dec 19, 2024SaveLearn
Revisiting the integral form of Gauss' law for a generic case of electrodynamics with arbitrarily moving Gaussian surfaceWe have re-examined the integral form of Gauss' law for arbitrarily moving charges inside and outside an arbitrarily expanding (or contracting) and deforming Gaussian surface. We have explicitly…Shyamal Biswas·Dec 16, 2024SaveLearn
The Stroh formalism for acoustic waves in 1D-inhomogeneous media: unified background and some applicationsThe aim of the review is to consolidate the core aspects of the Stroh formalism, trace the development of the impedance matrix concept, and outline the range of acoustic problems that have been…A. L. Shuvalov·Dec 12, 2024SaveLearn
Series solutions for clamped peridynamic beams using fourth-order eigenfunctionsWe propose an analytical approach to solving nonlocal generalizations of the Euler--Bernoulli beam. Specifically, we consider a version of the governing equation recently derived under the theory of…Ziyu Wang, Ivan C. Christov·Dec 12, 2024SaveLearn
Geometrically exact static 3D Cosserat rods problem solved using a shooting methodThis paper aims to solve the equations of geometrically exact 3D nonlinear Cosserat static rods under large displacements with a mesh free alternative method to finite elements: the shooting method.…Surmont Florian, Coache Damien·Dec 12, 2024SaveLearn
Modeling of Electromagnetic Radiation using a Dual Four-Potential Representation: From Dipole Blade Radiators to Ribbon Loop-like AntennasIn this paper, we explore classical electromagnetic radiation using a dual four-dimensional potential Θμ approach. Our focus is on the Planar Dipole Blade Antenna (PDBA), a system consisting of…Robert Salazar, Camilo Bayona-Roa·Dec 6, 2024SaveLearn
Lorenz gauge and the Poisson bracket in canonical electromagnetismIn treatments of electromagnetism, it is often tacitly assumed that the vector potentials of the field and their conjugate momenta satisfy the canonical Poisson bracket relations, despite the fact…D. Jaffino Stargen·Dec 6, 2024SaveLearn
Hamiltonian-based neural networks for systems under nonholonomic constraintsThere has been increasing interest in methodologies that incorporate physics priors into neural network architectures to enhance their modeling capabilities. A family of these methodologies that has…Ignacio Puiggros T., A. Srikantha Phani·Dec 4, 2024SaveLearn
Alternative sum rules and waterbed effects of Lorentz resonator system for sound absorption and transmission in a unidimensional waveguideWe investigate fundamental constraints on passive linear time-invariant acoustic systems through the developing alternative linear sum rules for sound absorption and transmission. Our approach, based…Di Mo, Yumin Zhang, Tianquan Tang et al.·Nov 29, 2024SaveLearn
Floquet scattering of shallow water waves by a vertically oscillating plateWe report on the scattering of a plane wave from a vertically oscillating plate in the low frequency approximation by means of Floquet theory. In the case of a static plate, the scattering…Magdalini Koukouraki, Philippe Petitjeans, Agnès Maurel et al.·Nov 28, 2024SaveLearn
Oscillation threshold of a Raman clarinet with localized nonlinear losses at the open endLocalized nonlinear losses are taken into account in a simple Raman clarinet model.The complete system is expressed as an iterated map, enabling to study the stability of the different playing…Nathan Szwarcberg, Christophe Vergez, Tom Colinot et al.·Nov 27, 2024SaveLearn
Thermodynamic Coupling of Mass and Electromagnetic Fields: Entropic Origin of Parity Asymmetry and the Meissner EffectWe develop a thermodynamic framework that couples mass dynamics, described by the Newton- Gibbs-van der Waals formalism, with electromagnetic fields beyond the scope of classical Maxwell theory.…Fei Wang·Nov 25, 2024SaveLearn
Addendum: Modeling the amplitude and energy decay of a weakly damped harmonic oscillator using the energy dissipation rate and a simple trick (2025 Eur. J. Phys. 46(1) 015004)We show how to adapt the approach introduced for viscous damping in [1] to derive the approximate amplitude decay in the case of damping by a force of constant magnitude (sliding friction) and in the…Karlo Lelas, Robert Pezer·Nov 23, 2024SaveLearn
Non-Local Classical Field Theory with Fractional Operators on S3 × R1 SpaceWe present a theoretical framework on non-local classical field theory using fractional integrodifferential operators. Due to the lack of easily manageable symmetries in traditional fractional…Abhi Savaliya, Ayush Bidlan·Nov 23, 2024SaveLearn
Acoustic forces near elastic substrateIn this work, we study the acoustic forces acting on particles due to sound scattering at the interface with an elastic substrate. Utilizing the Green's function formalism, we predict that…Vsevolod Kleshchenko, Khristina Albitskaya, Mihail Petrov·Nov 23, 2024SaveLearn
Particle manipulations based on acoustic valley topological rainbow defect-state trappingAcoustic microfluidic is an important technology in particle manipulations in biomedical analyses and detections. However, the particle-movement manipulations achieved by the standing surface…Decai Wu, Bowei Wu, Tingfeng Ma et al.·Nov 19, 2024SaveLearn
Simple methods for converting equations between the SI, Heaviside-Lorentz and Gaussian systemsSchool and undergraduate students are almost always taught the equations of electromagnetism using a set of conventions that are described as the SI. More advanced students are often introduced to…Paul Quincey·Nov 14, 2024SaveLearn
Comment on "Transformation of phase velocity among inertial frames [Wave Motion 50 (2013) 520-524, https://doi.org/10.1063/1.1888051]"The transformation formulas between two inertial frames for the minimum phase velocity and the phase velocity in an arbitrary direction are given. The derived transformation formula for the…Seyed Saied Mirahmadi·Nov 14, 2024SaveLearn
Optimal damping adapted to a set of initial conditionsVibrating systems can respond to an infinite number of initial conditions and the overall dynamics of the system can be strongly affected by them. Therefore, it is of practical importance to have…Karlo Lelas·Nov 13, 2024SaveLearn
The surprising subtlety of electrostatic field linesElectric fields are commonly visualized with field line diagrams, which only unambiguously specify the field's direction. We consider two simple questions. First, can one deduce if an electric…Kevin Zhou, Tomas Brauner·Nov 11, 2024SaveLearn