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 demonstrates that while mechanical constraints limit high-field tokamak designs to a peak field of 20 T in baseline configurations, combining advanced materials, alternative structural architectures, and reduced flux demands can enable the feasibility of compact, high-power fusion power plants with major radii under 4 meters.
This paper presents an exact analytical solution for electron dynamics in a plane electromagnetic wave by incorporating a Gaunt-factor-modified quantum radiation reaction into the Landau-Lifshitz equation, demonstrating that the system retains its classical integrability and yields a deterministic description of semiclassical energy evolution.
This paper calculates comprehensive multi-level and multi-term collisional depolarization, polarization-transfer, and population-transfer rates for solar helium I lines resulting from isotropic collisions with neutral hydrogen, providing essential data to improve the modeling of solar spectropolarimetry.
This paper proposes a methodology that combines differentiable kinetic simulators with gradient-based optimization to accurately infer plasma collision operators directly from phase space data, demonstrating superior performance and efficiency compared to traditional particle-track-based estimates.
This paper develops a near-axisymmetric perturbative theory and provides numerical evidence to analytically describe the formation and localization of sharp magnetic ridges on the inboard side of compact quasiaxisymmetric stellarators, offering a promising mechanism for divertor design without requiring rational rotational transform.
This paper presents fully kinetic one-dimensional simulations of Alfvén wave parametric decay instability using absorbing boundary conditions, revealing that at low plasma beta, nearly 92% of pump wave energy transfers to a backward-propagating Alfvén wave while the remainder heats electrons and ions only after the instability sufficiently develops, with heating rates approximately twice the linear growth rate.
This paper constructs a -dimensional Eddy Damped Quasi-Normal Markovian (EDQNM) closure model to demonstrate that sustained dynamo action in incompressible flows occurs only within a specific range bounded by lower and upper critical dimensions.
This paper utilizes ultra-high-resolution MHD simulations and a constant-flux transport model to demonstrate that compressible, magnetized turbulence exhibits scale-dependent alignment of velocity, magnetic, vorticity, and current fields below the energy equipartition scale, with specific scaling exponents that significantly impact eddy anisotropy, reconnection, and dynamo processes.
This study investigates how super-strong magnetic fields and relativistic temperatures modify normal plasma modes in ultra-relativistic electron-positron QED plasmas, revealing a significant reduction in the plasma frequency cutoff that leads to relativistic and field-induced transparency, alongside a temperature-independent modification of the electromagnetic wave refractive index.
This paper utilizes shell-to-shell transfer functions to demonstrate that inverse energy transfer in decaying magnetohydrodynamic turbulence arises from non-local, self-similar growth driven by the merging of local magnetic islands with equal-signed helicity, a mechanism consistent with Hosking integral conservation that operates independently of net-helicity and within individual helical sectors.