534 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 presents a computational investigation demonstrating that a tailored two-section capillary gas cell, combining a nitrogen-doped injection region with a pure helium acceleration section, can utilize a 100 TW-class laser to produce high-quality, GeV-scale electron beams with reduced energy spread, offering critical insights for future LWFA experiments at the ELI Beamlines Facility.
Building on prior simulations, this study utilizes a novel particle propagation model to demonstrate that secondary whistler and ion-cyclotron waves, generated by trapped particles in mirror modes within the intracluster medium, significantly enhance particle escape through wave-particle scattering that adheres to quasilinear theory.
This study demonstrates through one-dimensional radiation-hydrodynamic simulations that employing a mixed - laser drive for direct-drive inertial confinement fusion enhances ablation pressure and velocity while suppressing Rayleigh–Taylor instability, effectively balancing the hydrodynamic performance of irradiation with the energy-accessibility advantages of operation.
This study presents the first three-dimensional particle-in-cell simulation of Hall thruster electron drift instability using realistic magnetic field configurations and self-consistent neutral gas modeling, revealing that both the spatial structure and strength of the magnetic field significantly govern instability dynamics.
This study develops a self-consistent multi-physics framework to demonstrate that non-equilibrium radiative cooling is a dominant energy sink in high-enthalpy inductively coupled plasma wind tunnels at atmospheric pressure, accounting for up to 32% of input power and significantly reducing core plasma temperatures, particularly in nitrogen plasmas.
This paper demonstrates that implementing the thermal Perdew-Burke-Ernzerhof (PBE) functional within Kohn-Sham density functional theory significantly improves the accuracy of warm dense matter simulations—matching path integral Monte Carlo reference data for energies, forces, pressures, and charge densities at negligible computational cost.
This study employs Bayesian inversion of NASA Ames Electric-Arc Shock Tube spectral data to infer and significantly reduce uncertainties in eighteen nitrogen spectroscopic parameters, thereby decreasing the predicted radiative heat flux uncertainty for hypersonic entry by a factor of five.
This study utilizes COMSOL multiphysics simulations to optimize the magnetic field configuration and discharge parameters of a Penning ion source for sealed neutron tubes, demonstrating that a soft iron-reinforced structure combined with specific operating conditions significantly improves magnetic field uniformity and increases the monoatomic ion proportion from 9% to 30%.
This paper presents the first platform at SACLA, Japan, that integrates a high-power optical laser, an X-ray free-electron laser probe, and a 10 T pulsed magnet to enable the study of magnetized high-energy-density matter under extreme conditions.
Using high-resolution particle-in-cell simulations, this study demonstrates that compressive turbulence in collisionless plasmas drives cross-scale energy transfer where transit-time damping at MHD scales generates suprathermal electrons and proton beams, while sub-ion scale fast modes excite ion Bernstein waves, collectively explaining the origin of these phenomena in the solar wind.