614 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 fully relativistic close-coupling approach that incorporates plasma screening effects to model Stark broadening, resolving theoretical bottlenecks in electron-ion collisions and providing a quantum-mechanical interpretation of screening factors for improved plasma diagnostics.
This paper utilizes a novel Full-F gyrofluid model to simulate 2D Harris-sheet magnetic reconnection in low-beta plasmas, demonstrating that the non-normal nature of the evolution operator enables significant transient amplification that drives explosive reconnection and explains the transition from linear tearing to rapid nonlinear acceleration.
This paper proposes using a traveling, rotating magnetic field as a more energetically efficient and penetrating alternative to electric fields for suppressing axial losses in multi-mirror fusion machines, thereby enabling the achievement of fusion conditions in the central cell.
This paper provides a comprehensive comparison of explicit relativistic particle pushers used in Particle-in-Cell simulations, demonstrating that a significant class of these schemes can be generalized to arbitrary high-order accuracy and evaluating the performance of their fourth-order variants against second-order counterparts.
This paper presents an unbiased method for mapping particles to distribution functions that unifies Boltzmann's and Gibbs' paradigms to derive the principle of maximum entropy, enabling a rigorous statistical mechanical treatment of self-gravitating systems through the decoupling of time and ensemble averages.
This paper introduces a deflation technique that modifies the objective function to penalize previously found solutions, enabling the efficient discovery of multiple distinct, high-quality stellarator equilibria and coil designs from a single initial guess without relying on prescient starting points.
This paper demonstrates that fine-tuning a PDE foundation model on the JAG benchmark significantly improves sample efficiency and accuracy in the inverse estimation of inertial confinement fusion system parameters from multi-modal observations, particularly in data-limited regimes.
This study on ASDEX Upgrade H-mode plasmas reveals that strong electron heating induces hollow toroidal rotation profiles by generating a counter-current intrinsic torque through a transition to mixed ITG-TEM turbulence, which balances inward convective momentum transport and is critically influenced by pedestal-top density.
This study demonstrates that anomalous, diffusive particle transport in tokamak edge turbulence arises inherently from fundamental non-linear drift dynamics, with transport coefficients scaling according to the spectral properties of turbulent energy.
This paper proposes a compact, self-probing scheme using GeV electron beams and petawatt lasers to generate and detect vacuum birefringence via high-energy gamma-ray polarimetry, demonstrating through simulations that this approach can achieve the first laboratory observation of this nonlinear QED effect with current technology.