618 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 paper introduces a generalized characteristic mapping method that utilizes a semi-Lagrangian approach with Duhamel integrals to efficiently solve non-linear advection with source terms, demonstrating third-order accuracy and exceptional resolution in ideal magnetohydrodynamics simulations.
This study utilizes global GTC simulations to demonstrate that zonal flows effectively suppress ion temperature gradient-driven turbulence in both the Wendelstein 7-X and QSTK stellarator configurations, with the latter exhibiting lower heat flux due to higher critical gradients and similar mode structures.
This paper demonstrates that embedding physical symmetries into machine-learned reduced plasma models through data augmentation significantly improves their accuracy, data efficiency, and physical consistency in inferring fluid equations and pressure closures from kinetic simulations compared to standard approaches.
This paper presents a unified theoretical framework describing how ions gain perpendicular energy through magnetic moment breaking caused by localized electromagnetic fluctuations, offering a generic model for stochastic heating that applies to both Alfvénic turbulence and magnetic reconnection.
This paper demonstrates that two-fluid simulations employing appropriately chosen Landau-fluid closure parameters can accurately reproduce kinetic-scale energy spectra from fully kinetic Vlasov simulations, even in turbulent regimes far from local thermodynamic equilibrium, thereby validating their use as a computationally efficient alternative for modeling large-scale plasma turbulence.
This paper introduces a flexible, differentiable coil complexity proxy based on the fast QUADCOIL code to enable quasi-single-stage stellarator optimization, effectively balancing plasma performance and coil metrics while successfully reducing magnet counts for MUSE and coil forces for ARIES-CS.
This paper derives relativistic resistive magnetohydrodynamics for a two-component ultrarelativistic plasma directly from kinetic theory using the 14-moment approximation, establishing a simplified model that accurately describes systems with small viscosity-to-entropy ratios and weak fields while revealing controlled deviations, such as nonlinear back-reaction and shear-stress generation, in regimes with strong electric fields or significant shear stress.
Through simplified 3D MHD simulations and phenomenological analysis, this study identifies an asymptotic ultimate regime for the solar dynamo at large magnetic Reynolds numbers characterized by inter-hemispheric helicity fluxes, while highlighting that current global simulations remain trapped in non-asymptotic, parameter-sensitive regimes and outlining strategies to reach the true asymptotic state in realistic models.
This study presents the first in vivo investigation demonstrating that laser-driven protons delivered at ultra-high instantaneous dose rates reduce tissue swelling and alter immune and epidermal gene expression in normal mammalian tissue compared to conventional X-ray irradiation, providing initial evidence for the FLASH effect with this novel accelerator technology.
This review examines strong Alfvénic magnetohydrodynamic (MHD) turbulence across various regimes, including strong mean magnetic fields, small-scale whistler wave interactions, relativistic force-free conditions, and compressible flows, emphasizing the critical role of colliding Alfvén waves in driving the turbulence cascade.