166 papers
This collection explores the fundamental physics concepts that govern how matter and energy interact across the universe. From the invisible forces shaping our daily lives to the complex mechanics driving cosmic phenomena, these studies reveal the underlying rules of reality. Here, we translate cutting-edge research into insights anyone can understand, bridging the gap between abstract theory and tangible discovery.
Every new preprint in this category originates from arXiv, where researchers first share their latest findings with the global community. At Gist.Science, we process each of these submissions to provide both detailed technical summaries and clear, plain-language explanations. This dual approach ensures that whether you are a seasoned physicist or a curious learner, you can grasp the significance of every breakthrough without getting lost in dense equations.
Below are the latest papers in Class-Ph, freshly processed and ready for you to explore.
This paper presents a physically meaningful transition condition for solving the non-smooth forward dynamics of variable topology mechanisms, offering both redundant and minimal coordinate formulations and validating them through simulations of joint locking in planar and industrial manipulators.
This paper develops a compact theory of multi-slit time-reversed Young interference, demonstrating that beyond the exceptional two-slit case, quadratic Fresnel phases fundamentally alter reconstructed interference laws by lifting dark fringes, recovering textbook grating factors only under specific phase conditions, and generating Talbot-like revivals in source space governed by a reciprocal-distance condition.
This paper demonstrates a nonequilibrium analogue of Kramers turnover in a driven-dissipative Kerr parametric oscillator by theoretically establishing a method to decouple activation barriers from damping via drive-controlled rescaling and experimentally verifying the resulting nonmonotonic switching rate crossover in a micro-electromechanical device.
This paper employs the variational-asymptotic method to derive an asymptotically exact one-dimensional theory for functionally graded anisotropic rods, utilizing dual cross-sectional problems to provide rigorous energy bounds and demonstrating through numerical benchmarks that the model significantly outperforms naive rod theories by reducing deflection prediction errors from 20% to below 3% while accurately capturing long-wave dynamic behavior.
This paper systematically analyzes the dependence of ferromagnetic resonance frequency, damping, and quality factor on local energy curvature in ferromagnetic nanomagnets, highlighting how the standard quality factor approximation fails near bifurcation points where the number of metastable energy minima changes.
This paper investigates the inhomogeneous telegraph equation to demonstrate that sustained standing waves on a real string can only be generated by a forcing function that is spatially distributed, continuous, and resonant.
This paper demonstrates that an elastic rod subjected to equal and opposite transverse distributed loads with zero resultant force exhibits buckling and postcritical deformations identical to those caused by an axial load, a counterintuitive phenomenon confirmed through theoretical modeling, numerical simulations, and experimental validation.
This paper extends the concept of shortcuts to adiabaticity from quantum dynamics to classical nonlinear dissipative Lagrangian systems by using inverse engineering to design smooth, rapid control protocols for a coupled manipulator, while analyzing their trade-offs against time-optimal and PID methods and introducing a single-shot correction to mitigate early deviations.
This paper demonstrates that for strongly localized modes in linear spatially inhomogeneous continua with time-varying parameters, the adiabatic invariant can be explicitly calculated as the ratio of the mode's energy to its frequency, thereby providing a simplified method to solve such problems and establishing a connection to effective Hamiltonian systems.
This paper overcomes experimental limitations in applying the optical theorem to acoustics by developing a robust methodology that enables high-precision measurement of the extinction cross section for Helmholtz resonators, even in non-ideal anechoic environments with standing-wave resonances.