612 papers
Plasma physics explores the behavior of the fourth state of matter, a superheated soup of charged particles that makes up most of the visible universe. From the fusion power we hope to harness on Earth to the glowing auroras and distant stars above, this field investigates how these energetic gases interact with magnetic fields and light. It is a dynamic area where extreme conditions reveal fundamental laws of nature in ways solid matter never can.
At Gist.Science, we bridge the gap between these complex discoveries and curious minds by processing every new preprint from arXiv in this category. We transform dense, technical research into clear, plain-language explanations alongside detailed summaries, ensuring that breakthroughs in plasma dynamics and fusion energy are accessible to everyone. Below are the latest papers in plasma physics, curated and simplified for your reading.
This study demonstrates through 2D PIC simulations that a simple Near-Critical Density-filled straight-cone target outperforms complex geometries in generating high-energy, well-collimated proton beams by leveraging relativistic self-focusing and sustained electron refluxing to achieve a cutoff energy of 181.7 MeV.
This study utilizes a data-constrained, resistive magnetohydrodynamic simulation to demonstrate that a non-force-free initial magnetic field, characterized by a Lorentz force imbalance, can spontaneously trigger the formation and subsequent eruption of a flux rope in active region NOAA 12241 without requiring pre-existing structures or photospheric driving motions.
This paper extends plateau regime neoclassical theory to account for strong gradient effects comparable to the ion poloidal gyroradius, demonstrating that these conditions significantly alter transport predictions in tokamak regions like the pedestal and internal transport barriers.
This study utilizes two-dimensional pseudospectral simulations of the modified nonlinear Schrödinger–magnetosonic system to demonstrate that broadband sub-Alfvénic kinetic Alfvén wave turbulence under plasma sheet boundary layer conditions self-organizes into coherent, filamentary density cavities while exhibiting inertial-range spectral suppression driven by moderate Reynolds number constraints rather than wave physics alone.
This paper derives a reduced one-fluid plasma model from the relativistic Vlasov-Boltzmann-Maxwell system using moment hierarchy reduction and strong-guide-field ordering, resulting in a closed GENERIC framework that unifies reversible electromagnetic dynamics with irreversible thermodynamic relaxation through a scalar regulator variable representing coarse-grained charge imbalance and pressure anisotropy.
Using fully kinetic Particle In Cell simulations, this study demonstrates that tailored plasma density profiles can sustain autoresonant beat wave excitation to generate long-lasting, high-amplitude plasma structures with controlled wave packet shapes and group velocities, offering a viable alternative to laser frequency chirping for applications in plasma photonics.
This study utilizes advanced 3D particle-in-cell simulations to reveal that anomalous electron transport in Hall thrusters is not uniformly distributed but instead self-organizes into robust, persistent near-wall pathways, a spatial structure that remains consistent across different boundary conditions despite variations in transport strength.
This paper reports a laboratory measurement demonstrating that while low concentrations of impurities do not affect Coulomb crystallization thresholds in laser-cooled ion crystals, sufficiently high concentrations induce a linear shift due to local pinning, providing critical experimental data to refine models of multicomponent Coulomb matter in stellar environments like white dwarfs and neutron stars.
This paper presents an automated, end-to-end "runner" system for stellarator coil optimization that utilizes genetic algorithms and context-aware LLMs to streamline design workflows, features an open-source leaderboard for tracking solutions, and introduces novel in-the-loop finite-element calculations for Von Mises stress analysis.
This paper utilizes a modified drift-reduced fluid model implemented in the hermes-3 code to demonstrate that rapidly rotating plasmas exhibit three distinct rotation-driven interchange instability regimes and reduced stability when global Kelvin-Helmholtz modes are present, establishing a profile-based criterion for predicting instability susceptibility.