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 paper introduces a gridless quasistatic algorithm implemented in the Wake-T code that enables efficient, high-resolution simulation of axially symmetric plasma wakes for both laser- and beam-driven accelerators, significantly reducing computational costs compared to traditional 3D particle-in-cell methods.
This paper demonstrates that accelerating the semi-implicit energy-conserving PIC code ECsim with OpenACC on the Leonardo supercomputer achieves a 5× speedup and 3× energy reduction compared to CPU execution, while maintaining high scaling efficiency up to 1024 GPUs.
This paper proposes a novel nonlinear Gaussian process tomography method using a logarithmic transformation to efficiently enforce non-negativity constraints on plasma emissivity, demonstrating superior reconstruction accuracy compared to standard GPT and Minimum Fisher Information methods in the Ring Trap 1 device.
This paper presents a nonlinear Bayesian tomographic framework using Gaussian processes and a Laplace approximation to simultaneously reconstruct emissivity, ion temperature, and flow velocity from Doppler spectral data, effectively stabilizing velocity estimates in low-emissivity regions and successfully applied to magnetospheric plasma measurements in the RT-1 device.
This paper proposes that torsional Alfvén oscillations driven by firehose instability in a laboratory coronal arch experiment cause the rapid reallocation of plasma particles, resulting in the observed cylindrical stratification of the plasma.
This paper confirms the existence of a new bulk medium quasiparticle, the spatiotemporal optical vortex polariton, which possesses transverse orbital angular momentum driven by ponderomotive torques from the magnetic Lorentz force, with theoretical predictions validated by particle-in-cell simulations across various densities and field strengths.
This paper proposes and validates an analytical optimization procedure based on an improved relativistic plane model to tailor plasma density profiles for downramp injection in laser wake-field acceleration, successfully maximizing electron acceleration and showing excellent agreement with Particle-In-Cell simulations.
This study analyzes high-current runaway electron beam terminations in JET and DIII-D tokamaks to demonstrate that the success of benign termination is determined by the interplay between current profile peaking and MHD perturbation amplitudes, rather than ideal MHD growth rates alone.
This paper presents a general form of the improved Kelbg potential for atomic numbers up to , validates its accuracy for carbon plasmas against path integral Monte Carlo and density functional theory data, and discusses its broader applicability and limitations for equation of state studies in warm dense matter.
This study utilizes nonlinear MHD simulations with the M3D- code to demonstrate that while ideal ballooning modes in high- Wendelstein 7-X plasmas often exhibit benign saturation, nonlinear stability is not guaranteed and depends significantly on pressure profile shapes and magnetic configurations rather than just linear growth rates.