734 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.
Using the high-fidelity M3D-C1 code, this study investigates low-n MHD instabilities in SPARC baseline scenarios, revealing that internal kink modes drive sawtooth crashes through magnetic reconnection and pressure mixing, with crash timing highly sensitive to the on-axis safety factor and temperature profiles.
This paper elaborates on a first-principles approach using quantum Monte Carlo simulations to model ionization potential depression in warm dense matter, with a specific focus on the significant role of the Fermi barrier in the ionization process as nuclear charge increases.
This paper investigates the emission of Cherenkov plasmons by primordial neutrinos in a nonrelativistic lepton plasma, deriving the energy emission rate to demonstrate that this mechanism can efficiently cool neutrino clusters formed in the early universe through interactions with a hypothetical light scalar boson.
This paper derives generalized multi-dimensional conservation laws for action, energy, momentum, and angular momentum in stimulated Raman and Brillouin scattering within a density gradient by applying Noether's theorem to a newly identified Lagrangian density, thereby extending known one-dimensional relations to include orbital angular momentum and wave shift contributions.
This paper introduces SAT3-NN, a neural network framework trained on high-resolution CGYRO simulation data that outperforms previous quasilinear saturation models (SAT0–SAT3) by more accurately predicting turbulent fluxes and capturing anti-gyroBohm scaling from linear gyrokinetic inputs.
This paper demonstrates that neural network emulators of virtual circuits can robustly and effectively control MAST Upgrade plasma shapes in real-time closed-loop simulations, offering a low-latency alternative to traditional physics-based controllers for future fusion devices.
This study demonstrates that ultrafast kilowatt-range microwave pulsing enhances CO2 conversion and energy efficiency in atmospheric-pressure plasmas, achieving up to 40% and 20% improvements respectively in a Surfaguide-based reactor, though these gains are suppressed in a cavity-based torch due to rapid afterglow quenching and the absence of a plasma reignition regime.
This study demonstrates that incorporating the Parker spiral into reflection-driven turbulence models alters the outer scales and turnover times of turbulent eddies, thereby preventing the cascade from freezing and enabling more efficient heating of the solar wind while maintaining strong imbalanced turbulence at larger heliocentric distances.
This paper presents a low-order analytical framework demonstrating that lithium-based tritium breeding and heat-removal systems in fusion reactors exhibit Bessel-type dynamics, enabling the effective application of PID controllers to manage thermal expansion and tritium inventory errors.
By employing a multi-hierarchy framework that couples MHD and particle-in-cell simulations to solve a two-dimensional Riemann problem, this study demonstrates that Petschek-like reconnection with switch-off slow shocks remains viable in collisionless-collisional systems like solar flares, as these shocks can form in the MHD domain even when suppressed in the PIC domain, subsequently promoting plasma isotropization.