Elasticized magnetohydrostaticsThe modern approach to modeling equilibria in stellarators features two blind spots: lack of foundational agreement between theory and computation, and inability to reliably explore…J. W. Burby, I. Cho, M. Ruth·Oct 26, 2026SaveLearn
A generative foundation model for 2D magnetized plasma turbulenceWe present a proof-of-principle study demonstrating a conditional generative foundation model for self-organizing magnetized plasma turbulence. Built on a multichannel flow-matching framework with a…Junyi Guo, Meet H. Parikh, Jian-Xun Wang et al.·Oct 26, 2026SaveLearn
Relativistic Space-Charge-Limited Current in Electrostatic Limit for a Finite-Width Diode with Arbitrary Injection EnergyWe develop a weakly relativistic and electrostatic formulation of space-charge-limited current (SCLC) with arbitrary injection energy, covering the accelerating-diode and drift-space regimes. The…Y. L. Liu, S. W. Choo, L. K. Ang·Oct 26, 2026SaveLearn
Maximization of nuclear fusion reactivity via optimal energy distributionsWe investigate the optimization of nuclear fusion reactivity relative to the choice of energy probability distribution. A single Maxwell-Boltzmann (MB) distribution is found to be optimal in the…Roberto Onofrio, Kamel Ourabah, Carlo Presilla·Oct 26, 2026SaveLearn
Kinetic modifications to parallel transport in a low-recycling scrape-off layer: A one dimensional gyrokinetic studyA liquid lithium boundary offers a route to improved energy confinement via reduced recycling, but the resulting low-density, high-temperature edge can become sufficiently collisionless such that…A. Maan, E. Perez, M. Francisquez et al.·Oct 26, 2026SaveLearn
Drift wave turbulence and transport analysis of hot ion L-mode plasma with fishbone instability on the HL-3 tokamakWe establish the cross-scale coupling by which a fishbone mode governs both toroidal rotation and drift-wave turbulence in the HL-3 hot ion mode (Ti ≈ 3Te, Ti(0)≈9.8\,keV).…Y. K. Shu, W. Chen, Z. J. Li et al.·Oct 26, 2026SaveLearn
Explosive instability, quiet plasma: phase-space cascades, coherent vortices, and transport suppression in a dipole pair plasmaTurbulence in a magnetised dipole pair plasma can transfer electrostatic energy into coherent flows while carrying entropy to small scales. This occurs via a dual cascade in a four-dimensional phase…Daniel Kennedy, Gabriel G Plunk·Oct 26, 2026SaveLearn
Bright Compton source based on the interaction of an ultraintense laser pulse with a relativistically transparent foil and a plasma mirrorWe propose and numerically study an x-ray source in which a single laser pulse first accelerates electrons while passing through a relativistically transparent thin overdense foil and then, after…Daria A. Chekmareva, Artem V. Korzhimanov·Oct 26, 2026SaveLearn
Non-Maxwellianity in Temperature Relaxation between Plasma SpeciesTemperature relaxation between plasma species is usually described by Landau--Spitzer (LS) theory, which assumes Maxwellian distributions throughout. We show analytically that, for two Maxwellian…Yao Guo, Dong Wu, Jie Zhang·Oct 26, 2026SaveLearn
Toward Integrated Microwave Diagnostics for Future Fusion Devices: Design of a Compact Waveguide DiplexerMicrowave diagnostics are essential for plasma control and physics studies in magnetic confinement fusion, providing measurements of electron density, electron temperature, and energetic-particle…Xiaoliang Li, Valerian Hall-Chen, Umesh Kumar et al.·Oct 26, 2026SaveLearn
Laser wakefield acceleration and x-ray emission in plasma produced by the electrical explosion of an aluminum wireUnderdense plasmas used in relativistic laser-plasma interactions are conventionally produced from gaseous targets, whereas low-density metallic plasmas remain comparatively unexplored. Here, we…Heng Wang, Liang Sheng, Jun Liu et al.·Oct 26, 2026SaveLearn
Experimental Evidence for Reflected Ions and Ion Temperature Anisotropy in a Forming Supercritical Magnetized Collisionless ShockSupercritical magnetized collisionless shocks require ion reflection for dissipation, yet its role during formation remains unclear. Using high-power lasers, self-emission imaging, and collective…Ryo Yamazaki, T. Takezaki, T. Morita et al.·Oct 25, 2026SaveLearn
Identification of rippling interface between laser-ablated plasma and ambient uniform plasma at restWe present laboratory experiments on the early stage of the formation process of quasi-perpendicular supercritical magnetized collisionless shocks using laser-produced plasmas in an ambient uniform…Ryo Yamazaki, S. Tomita, T. Takezaki et al.·Oct 25, 2026SaveLearn
Generalization of the Rosenbluth-Putvinski avalanche growth rate to the drift kinetic regimeA new collisionless detrapping mechanism is shown to modify the rate of runaway electron (RE) generation by as much as a factor of two for strong inductive electric fields. This detrapping mechanism…Christopher J. McDevitt, Jonathan S. Arnaud·Oct 24, 2026SaveLearn
Non-Ideal Relativistic Plasma MirrorsRelativistic plasma mirrors formed in the wake of intense laser pulses propagating in underdense plasmas can provide an efficient mechanism for generating attosecond pulses, and for enhanced focusing…Zahra M. Chamazkoti, Luís O. Silva·Oct 24, 2026SaveLearn
Wave-branch classification of ideal MHD discontinuities in Q-variablesThe Q-variable formalism combines velocity and magnetic field into branches aligned with a selected MHD wave. For homogeneous ideal MHD, appropriate choices of the branch parameter α correspond…Anna Krupka, Tom Van Doorsselaere·Oct 24, 2026SaveLearn
Triple Decomposition of Field Gradient Tensors in Space PlasmasCharacterizing local topology in magnetohydrodynamic (MHD) turbulence is fundamental to understanding energy dissipation, intermittency, and coherent structures in space plasmas. Classical double…Virgilio Quattrociocchi, Giuseppe Consolini, Maria Federica Marcucci·Oct 24, 2026SaveLearn
Accelerating high-fidelity gyrokinetic fusion simulations with iGENEWe present the latest version of iGENE, a differentiable implementation of the local (flux-tube) gyrokinetic code GENE, now fully rewritten in JAX. iGENE features a multispecies, collisional, fully…Gabriele Merlo, Victor Artigues, Carl-Martin Pfeiler et al.·Oct 24, 2026SaveLearn
A Novel Linked-Mirror Device for FusionWe design a novel linked-mirror device (LMD) with a magnetic well using the near-axis expansion (NAE) method. The design consists of two parallel straight mirror sections connected at both ends by…Haorong Qiu, Xiang Li, Guodong Yu et al.·Oct 24, 2026SaveLearn
An In-depth Study of Stochastic Stellarator Coil OptimizationWe extend stochastic coil optimization for stellarators and analyze the effect of optimizing for coil manufacturing errors, assembly errors represented by centroid translations and angular offsets,…Vincenzo Gallegos, Evan Laljit, Julianne Stratton et al.·Oct 24, 2026SaveLearn
Tokamak-SI: Interpreting Tokamak Discharges with Labeled CatalogsFinding which phenomena occur in a tokamak discharge, and when, is often a manual task. Previous efforts at labeling events have been task-specific, each with its own corpus of data. We introduce…Nathaniel Chen, Alvin Garcia, Ricardo Shousha et al.·Oct 23, 2026SaveLearn
Predicting Negative Triangularity Edge Confinement with a Neutral-Coupled Full-f Gyrokinetic ModelGlobal full-f gyrokinetic simulations coupled to a reduced neutral-fluid model reproduce key DIII-D experimental trends and identify mechanisms underlying improved confinement in negative…T. N. Bernard, A. C. D Hoffmann, M. Francisquez et al.·Oct 23, 2026SaveLearn
Plasma transport by carrier electrons: delocalization length for heat-fluxThe delocalization length λd=λei Z/Z+4.45 is an improved heat-flux non-locality metric accounting for the localizing effect of electron-electron collisions on the electron population…C. A. Walsh·Oct 23, 2026SaveLearn
Two-component Bayesian modeling in the data analysis of collective Thomson scatteringWe apply Bayesian inference to the analysis of collective Thomson scattering (CTS) spectra, a diagnostic technique for determining local plasma parameters. Using the population annealing Monte Carlo…Akito Nakano, Kentaro Sakai, Hantao Ji et al.·Oct 23, 2026SaveLearn
Overview of Enhanced D-alpha and Quasi Continuous Exhaust H-modes at DIII-DWe review the Enhanced D-alpha (EDA) and Quasi-continuous Exhaust (QCE) H-modes that have recently been achieved in the DIII-D tokamak. These scenarios are free of large type-I edge-localized modes…N. Leuthold, Z. Li, M. Faitsch et al.·Oct 22, 2026SaveLearn