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 paper presents a numerical study using the EPOCH code to demonstrate that sub-picosecond laser pulses driving concave hemispherical targets primarily accelerate protons via Target Normal Sheath Acceleration, resulting in energy-dependent focusing where the focal spot size and plane scale linearly with the target radius.
Numerical simulations of the Hasegawa-Wakatani equation reveal that resistive-drift-wave turbulence at small electron adiabaticity is dominated by vortex-density clumps that can couple into ballistic dipoles, thereby driving non-local plasma transport and potentially triggering other instabilities.
This paper presents a portable, multi-GPU hybrid MPI+OpenMP implementation of the BIT1 Particle-in-Cell Monte Carlo code that leverages OpenMP target tasks, optimized memory layouts, and standardized I/O to achieve scalable, high-performance execution on heterogeneous exascale systems like Frontier.
This paper introduces a unified framework for optimizing stellarator designs by reformulating confinement conditions as constraints on a homeomorphic transformation of field contours, enabling the discovery of highly compact configurations with performance comparable to larger reactor-scale designs while systematically balancing confinement quality, geometric complexity, and engineering requirements.
This paper proposes a statistical formulation of magnetic flux freezing in turbulent plasmas using time-evolving magnetic path lines, demonstrating that the classical deterministic theorem fails in rough fields and must be replaced by a stochastic conservation law over ensembles of backward-advected surfaces.
This paper introduces CMA-Unfold, an open-source, robust unfolding framework based on the Covariance Matrix Adaptation Evolution Strategy (CMA-ES) that accurately reconstructs complex photon energy spectra from stacked calorimeter depth-dose profiles without restrictive parametric assumptions, offering a noise-resilient solution for diagnostics in inertial confinement fusion and high-intensity laser experiments.
This paper reviews numerical methods implemented in the open-source toolkit Axiprop for modeling ultrashort, intense laser pulse propagation in plasmas, demonstrating their application in designing optical plasma waveguides and phase-locked flying-focus schemes for laser plasma electron acceleration.
This paper proposes an efficient rejection-sampling procedure for generating Kappa distributions in particle-in-cell (PIC) simulations of space plasmas by employing a Pareto distribution as an envelope, which requires only uniform variates and achieves an acceptance efficiency of approximately 0.73 to 0.8.
Using high-resolution GRMHD simulations, this study demonstrates that density and magnetic field inhomogeneities in accretion flows around Kerr black holes generate steeper power spectra, longer correlation times, and larger coherent structures compared to unperturbed cases, offering new insights into interpreting Event Horizon Telescope observations of supermassive black holes.
This paper presents global relativistic magnetohydrodynamic simulations demonstrating that small perturbations in neutron star magnetospheres can steepen into ultra-relativistic "monster shocks," with findings confirming analytical predictions for equatorial shocks and revealing how oblique shocks and competing wave modes can fragment shock fronts, reduce magnetization, and intermittently generate high-energy emission.