627 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 ultra-long 2D3V PIC simulations of unmagnetized relativistic pair shocks in a front-comoving frame, providing strong evidence for a steady downstream state characterized by soliton-like magnetic structures and limited Fermi acceleration, while confirming that true power-law tails do not form.
This paper establishes a framework for achieving spatiotemporally selective plasma breakdown near surfaces by utilizing tailored resonant field enhancement in dielectric materials and dynamic microwave pulse shaping to locally confine and reconfigure microplasmas at specific locations.
This paper introduces VEQ-MF, a fast spectral framework for computing two-dimensional multi-fluid equilibria with species-dependent rotation, and applies it to rotating p-11B spherical tokamaks to reveal how competing centrifugal and polarization effects influence the fusion-to-bremsstrahlung power ratio.
This paper presents an asymptotic-preserving framework that couples a two-species five-moment fluid model with an external ideal magnetohydrodynamic solver to enable efficient, globally consistent simulations of collisionless space plasmas by seamlessly projecting fast kinetic dynamics onto slow MHD scales.
This study numerically inverts published time-of-flight ion spectrometer data to determine the optical cycle-averaged ionization rates of Ar, O, and N as a function of local instantaneous laser intensity up to approximately 300 TW/cm for 800 nm ultrashort pulses, while recalibrating microchannel plate collection efficiencies and validating O results against multiphoton cross-section data.
This paper presents a semi-empirical model that modifies theoretical kinetic energy spectra with two adjustable parameters to describe the thermalized temperature and mean axial momentum of electrons released from O by an 800 nm ultrashort pulsed laser as a function of peak intensity, thereby providing essential initial conditions for electrodynamic fluid simulations.
This paper presents the first systematic investigation of I-mode on the EAST tokamak under boronized wall conditions, demonstrating that boronization significantly broadens the accessible density range, increases the occurrence of favorable magnetic configurations with enhanced edge shear, and establishes a new energy confinement scaling that supports the development of reactor-relevant, ELM-free fusion scenarios.
The paper introduces PIC, a flexible, Python-based electromagnetic particle-in-cell framework that utilizes a callback-centric architecture to decouple custom physics and diagnostics from high-performance C/Numba kernels, enabling dynamic load balancing and in-situ analysis for intense laser-plasma interactions.
This paper proposes and validates a dual-pulse micronozzle acceleration scheme that achieves phase-locked, sub-GeV proton beams with high laser-to-proton conversion efficiency by synchronizing a prepulse-generated proton front with a delayed main pulse to sustain a long-lived axial accelerating field.
This paper proposes and validates a novel experimental geometry utilizing 90-degree scattering to enable direct, single-shot measurement of radiation reaction energy losses in high-intensity laser-electron collisions through simultaneous pre- and post-collision electron beam spectrum analysis.