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 reviews recent progress at the intersection of active matter and band topology, explaining how non-Hermitian and nonequilibrium effects in self-propelled systems enable exotic topological phenomena that are unfeasible in passive, conservative systems.
This paper demonstrates that while the small- expansion of radiation-reaction corrections in Bopp-Landé-Thomas-Podolsky electrodynamics provides accurate short-time approximations for a point charge in a constant electric field, its unphysical long-term behavior confirms that the theory remains a viable, non-pathological alternative to standard Lorentz electrodynamics for classical point charges.
This paper elucidates the necessary link between mechanics and thermodynamics in fluid mechanics by demonstrating that the principle of virtual work, when formulated with a specific internal energy, provides a mathematically sound framework for correctly integrating the two theories.
This paper analyzes how feedback loops, specifically using a lock-in amplifier, can induce deep subthreshold parametric squeezing or cooling in a single-degree-of-freedom resonator, revealing that while averaging, harmonic balance, and Floquet theories yield varying predictions for amplification gain and bifurcations, the system exhibits strong deamplification and cooling near Hopf bifurcations and squeezing near saddle-node bifurcations.
This paper resolves the apparent contradiction between the nonzero residual entropy of glasses and the third law of thermodynamics by redefining equilibrium states through atomic positions, demonstrating that residual entropy arises from evaluating the system on an extended space of frozen configurations while the entropy of the single thermally active configuration strictly vanishes at absolute zero.
This paper extends Acharya's 2019 result on the non-vanishing stress of a spatially uniform dislocation density field in nonlinear elastic materials from a two-dimensional symmetry subgroup to the full three-dimensional orthogonal group , while incorporating additional structural assumptions and relaxed regularity requirements.
This paper provides a theoretical description of the jump phenomenon in a general eccentric cylinder rolling on a ramp, demonstrating that while normal and frictional forces vanish at the jump point, a jump without slipping is possible only if specific dynamic parameters fall within a restricted region.
This study demonstrates the creation of twisted multilayer moiré water waves carrying robust skyrmionic topologies, revealing that trilayer configurations offer superior stability and energy concentration compared to bilayers, thereby establishing water waves as a macroscopic platform for exploring topological physics.
This paper presents a novel, simplified analytical framework for deriving accurate approximate formulas for energy decay in damped harmonic oscillators under Coulomb, Stokes, and Newton damping, while also offering an exact solution for Stokes damping that bypasses standard differential equation methods, making the approach suitable for undergraduate and advanced high school physics education.
This expository article provides a unified, self-contained, and didactic introduction to Lambert's problem in orbital dynamics, offering a comprehensive derivation for elliptical trajectories that requires only minimal background knowledge and serves as an accelerated resource for students and researchers.