169 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 investigates band modulations and topological transitions in a one-dimensional periodic bead-on-string chain by combining exact transfer-matrix analysis, numerical simulations, and tabletop experiments to demonstrate that localized midgap states are topological solitons governed by the Su-Schrieffer-Heeger model and Dirac theory.
This paper proposes and validates a low-frequency underwater acoustic insulator based on complementary extremal materials, which achieve perfect mode conversion from longitudinal to transverse waves at the interface between a unimode and a bimode material to control elastic wave polarization and waterborne sound.
This paper addresses the confusion caused by non-SI quantities and misleading terminology in phase and amplitude noise measurements, advocating for the universal adoption of the International System of Units (SI) and clear, unambiguous language to standardize the field.
This paper proposes a classical model of elementary particles where distinguishing between the center of mass and the center of interaction leads to a description of spinning particles whose dynamics, when the center of interaction moves at light speed, yield Dirac's equation upon quantization.
This paper derives and explicitly characterizes the complete set of universal displacement fields for all 48 material symmetry classes in three-dimensional linear strain-gradient elasticity, revealing that while high-symmetry classes retain classical universal displacements, lower-symmetry classes impose stricter higher-order differential conditions that reduce these families to proper subsets.
This paper proposes a first analytical approach for estimating the viscosity-like parameter of three-phase viscoplastic materials by extending classical averaging equations, bounds, and the Mori-Tanaka method to the three-phase case, with specific fully analytical results provided for dilute inclusions.
This paper presents an exact frequency-domain formulation of pendulum-like systems that unifies oscillatory, separatrix, and rotational regimes under a single universal spectral kernel, revealing that regime transitions are symmetry-driven reorganizations in frequency space rather than changes in the underlying spectral structure.
This paper outlines Jackson's derivation of the inhomogeneous wave equations for auxiliary functions and in his 2002 AJP paper, clarifying their distinct roles in transforming the Lorenz-gauge vector potential to the Coulomb gauge by showing that results from subtracting from rather than being given directly by .
This paper proposes a covariant generalization of the non-relativistic Goedecke equation to derive a new classical relativistic equation for point charge motion that eliminates runaway solutions and encompasses the Abraham-Lorentz-Dirac and Mo-Papas equations as approximate consequences.
This monograph explores the mathematical foundations of Special Relativity in flat spacetime, with a specific focus on the Lorentz group and its applications to mechanics and electrodynamics.