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 presents and validates an analytical criterion for predicting significant runaway electron generation in future activated tokamaks by incorporating tritium beta decay, Compton scattering, and partial noble gas screening effects into a reduced model.
This paper presents a predictive modeling framework for NSTX H-mode pedestal profiles by coupling the ASTRA transport solver with neoclassical and reduced gyrokinetic models, revealing that while neoclassical and ETG turbulence dominate specific channels, KBM/MHD-like modes are essential for accurately capturing transport in both ion and electron thermal channels.
This paper demonstrates that introducing a slow longitudinal increase in the quasi-static plasma magnetic field enables phase-controlled direct laser acceleration by creating hysteresis in the betatron-to-laser frequency ratio, which suppresses reversible energy exchange and allows electrons to sustain net energy gain.
This study demonstrates through particle-in-cell simulations that orientation-dependent field confinement within rectangular nanorings significantly enhances energy absorption and laser-accelerated ion cutoff energies, offering a versatile platform for advancing compact, high-repetition-rate particle sources.
This paper constructs fully three-dimensional, toroidally asymmetric magnetically confined plasma equilibria with closed, nested magnetic and current-density surfaces by applying sinusoidal perturbations to Solov'ev solutions, demonstrating that such configurations can exhibit magnetic islands and stochasticity in outer regions while proving that isomagnetic surfaces are neither necessary nor sufficient for the existence of nested magnetic surfaces.
This paper reports the first demonstration of plasma atomic layer etching (ALE) for diamond using a cyclic O/Kr chemistry process that achieves atomic-scale precision with a 6.85 Å etch depth per cycle while preserving the diamond bonding structure and reducing surface roughness.
This study demonstrates that coherent resonant excitation using two copropagating laser pulses with a specific temporal separation of approximately a quarter plasma wavelength can amplify wakefield amplitudes up to three times greater than those generated by a single pulse in homogeneous plasma.
This paper presents a new gyrokinetic theory of geodesic extended modes in low magnetic shear tokamaks and stellarators, revealing a microinstability driven by the non-adiabatic response of passing electrons that couples with ion dynamics, a phenomenon distinct from modes in high-shear regimes and validated through simulations.
This study experimentally demonstrates that the evolution of pulsed discharge inside a preformed air bubble in water is jointly governed by pulse history, pulse width, and solution conductivity, transitioning from stochastic corona-like emissions in the first pulse to unstable streamer discharges and eventual bubble rupture in subsequent pulses as these parameters increase.
This study demonstrates that neglecting optical smoothing techniques, plasma velocity profiles, and phase modulator synchronization in cross-beam energy transfer models leads to significant errors in predicting power exchange critical for inertial confinement fusion implosion symmetry, necessitating the use of advanced kinetic models and simulations for accurate design.