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 compares high-Mach-number interplanetary and terrestrial quasi-parallel shocks to reveal that while Foreshock Compressive Structures initiate under similar upstream conditions, the interplanetary shock fails to develop fully evolved nonlinear structures due to a spatially limited growth zone and a lack of global curvature that inhibits the lateral supply of energetic ions.
This paper presents the development, validation, and verification of a deterministic collisional ionization algorithm for the OSIRIS particle-in-cell framework that significantly improves ionization rate accuracy by up to two orders of magnitude while maintaining linear computational scaling.
This paper proposes a general control strategy using external electric fields to stabilize uniformly magnetized plasma by manipulating the roots of the dispersion relation, a method validated through both theoretical analysis and numerical experiments on Gaussian equilibria and the Dory-Guest-Harris instability.
This study utilizes the uncoupled Energetic Particle Radiation Environment Model (EPREM) to systematically analyze how variations in physical parameters, such as diffusion and shock profile, influence the morphology and longitudinal spread of simulated widespread solar energetic particle events, revealing conditions under which flux may diminish at large longitudinal distances from the shock origin.
This paper presents a novel nonlinear anisotropic equilibrium reconstruction method utilizing a new basis set and constrained Bayesian optimization to accurately infer sloshing ions in high- axisymmetric magnetic mirrors with limited diagnostics, offering a robust tool for future fusion power plants.
Using automatic detection of discrete features alongside Juno-UVS and in-situ data, this study demonstrates that magnetodisc scattering primarily drives electron precipitation in Jupiter's ultraviolet aurora and classifies injection signatures into dawn-storm and non-dawn-storm types, while suggesting that outer emission arcs are broadened sequences of these signatures.
This paper presents a relativistic magnetohydrodynamic model of spherical magnetic plasmoid explosions that yields two distinct solution classes—high-density/high-pressure configurations associated with magnetar giant flares and low-density/magnetically dominated configurations linked to fast radio bursts.
This paper presents a numerical method for constructing multi-fluid-multi-species gravitational stratifications of solar atmospheric plasma that simultaneously satisfy hydrostatic and ionization equilibrium, thereby eliminating non-physical disturbances and numerical instabilities caused by initial in-equilibria in dynamic simulations.
This paper investigates the properties of a plasma sheath containing cold positive ions, secondary electrons, and primary electrons with a non-thermal Cairns distribution, deriving new criteria for the Bohm speed, floating potential, and critical secondary electron emission coefficient that differ significantly from Maxwellian-based models due to the influence of the non-thermal parameter.
This study investigates the transition between ELMy and EDA H-modes on Alcator C-Mod by validating pedestal density models, identifying a distinct sensitivity to neutral sources in ELMy regimes, and demonstrating that incorporating a resistive ballooning mode transport channel significantly improves predictions for EDA regimes while reducing predicted pedestal density by approximately 20%.