126 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 proposes an angular-momentum preserving dissipative model for the N-body problem that reduces to homographic equations for central configurations, analyzes the resulting two-body dynamics via Poincaré compactification, and demonstrates that the dissipation does not affect periapsis precession.
This paper demonstrates that the Mpemba effect, where a system initially farther from equilibrium relaxes faster than a closer one, can occur within the linear-response regime of many-body systems through spectral separation in reciprocal systems and non-normal relaxation dynamics in non-reciprocal systems.
This paper demonstrates that within a distributional framework, the Principle of Virtual Work is necessary to characterize equilibrium in higher-gradient continua where balance laws alone are insufficient, and it clarifies that Noll's theorem regarding surface contact forces relies on assumptions that fail for such materials, thereby validating the existence of curvature-dependent contact interactions.
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 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 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 demonstrates that combining the geometric Berry phase with non-Hermitian dissipation enables a fundamentally new amplification mechanism where slow parameter modulation converts a lossy oscillator system into one with gain, a phenomenon uniquely driven by the complex-valued Berry phase.
This paper contrasts classical and quantum models of particle-wall interactions within the canonical ensemble to elucidate how surface density correlations, though vanishing in the thermodynamic limit, refine the understanding of its attainment for an ideal gas.
This paper analyzes the dynamics of a classical Dirac particle interacting with an external electromagnetic field, demonstrating that the conservation of intrinsic mass and spin, combined with the distinction between the center of charge and center of mass, necessitates a radiation reaction force to account for energy differences between the work done on these two points.
This paper rigorously derives a variational action principle for classical initial value problems by taking the classical limit of the Schwinger-Keldysh formalism, revealing that both forward and backward paths possess classical solutions and fluctuations, with the backward path uniquely propagating backwards in time to naturally enforce zero deviation without manual constraint.