Feasibility of Negative Triangularity Equilibria in the SPARC TokamakWe investigate the feasibility of negative triangularity (NT) plasma configurations in the SPARC tokamak, a compact, high-field device (up to 12.2 T) designed for positive triangularity (PT)…Narin Yüksek, Theodore Golfinopoulos·Mar 1, 2026SaveLearn
Nonlinear magnetohydrodynamic modeling of ideal ballooning modes in high-β Wendelstein 7-X plasmasWe present nonlinear magnetohydrodynamic (MHD) simulations of high-β Wendelstein 7-X plasmas using the stellarator extension of the M3D-C1 code, building on the recent work that shows benign…Yao Zhou, K. Aleynikova, Chang Liu et al.·Mar 1, 2026SaveLearn
The Value and Cost of Fusion NeutronsDeuterium-tritium fusion reactions produce high-energy neutrons that can transmute materials into valuable isotopes. Over the next ten years, the cost of fusion neutrons is projected to decrease by…J. F. Parisi, K. Schiller·Feb 28, 2026SaveLearn
The Hall Term and Anomalous Resistivity Effects in Neon Gas-Puff Z-PinchesIn this paper, we compare experimental and numerical simulation results to benchmark the PERSEUS code against gas-puff Z-pinch implosions on COBRA. We then use the code to investigate the structure…A. Rososhek, C. E. Seyler, E. S. Lavine et al.·Feb 27, 2026SaveLearn
Available Energy and Ground States of Convective Hydrodynamic and Hydromagnetic InstabilitiesWe propose a method for predicting the nonlinear saturation level of convective instabilities in neutral and magnetized fluids. The method combines Gardner's restacking algorithm, which computes the…Kaixuan Fan, Yao Zhou·Feb 27, 2026SaveLearn
Chaos in the dynamics of electromagnetic solitons in relativistic degenerate plasmasWe propose a coupled system for the nonlinear interaction between high-frequency, circularly polarized, intense electromagnetic (EM) waves and low-frequency electron-density perturbations, driven by…S. Roy, S. Das Adhikary, A. P. Misra·Feb 27, 2026SaveLearn
Impact of geodesic curvature on zonal flow generation in magnetically confined plasmasThe impact of magnetic geometry on zonal-flow generation in ion temperature gradient driven turbulence is investigated by means of linear and nonlinear gyrokinetic simulations. The modulation of…Motoki Nakata, Seikichi Matsuoka·Feb 27, 2026SaveLearn
Merging of zonal flows in gyrofluid resistive drift-wave turbulenceNon-linear dynamics of zonal flows is investigated in the context of the gyrofluid modified Hasegawa-Wakatani model. Merging of zonal flows and the chaotic developement of the initial zonal flow…Fabian Grander, Tobias Gröfler, Franz Ferdinand Locker et al.·Feb 26, 2026SaveLearn
Experimental Demonstration of Beam-Driven Wakefield Acceleration in Laser-Plasma FilamentSelf-guided femtosecond laser pulses propagating in low-pressure gas can generate plasma filaments, establishing a new framework for plasma wakefield acceleration. Unlike conventional schemes relying…M. Galletti, L. Verra, A. Biagioni et al.·Feb 26, 2026SaveLearn
Gyrokinetic turbulent transport simulations on steady burning condition in D-T-He plasmasIon temperature gradient(ITG) and trapped electron modes(TEM) driven turbulent transport in an ITER-like plasma is investigated by means of multi-species gyrokinetic Vlasov simulations with D, T, He,…Motoki Nakata, Mitsuru Honda·Feb 26, 2026SaveLearn
Isotope Effects on TEM-driven Turbulence and Zonal Flows in Helical and Tokamak PlasmasImpacts of isotope ion mass on trapped electron mode (TEM) driven turbulence and zonal flows in magnetically confined fusion plasmas are investigated. Gyrokinetic simulations of TEM-driven turbulence…Motoki Nakata, Masanori Nunami, Hideo Sugama et al.·Feb 26, 2026SaveLearn
Nonlinear entropy transfer via zonal flows in gyrokinetic plasma turbulenceNonlinear entropy transfer processes in toroidal ion temperature gradient (ITG) and electron temperature gradient (ETG) driven turbulence are investigated based on the gyrokinetic entropy balance…Motoki Nakata, Tomo-Hiko Watanabe, Hideo Sugama·Feb 26, 2026SaveLearn
Runaway electron generation in ITER mitigated disruptions with improved physics modelsWe assess runaway-electron (RE) generation in ITER disruptions mitigated by shattered pellet injection (SPI) using improved physics modelling in the 1D disruption simulation framework Dream. To this…L. Votta, F. J. Artola, E. Nardon et al.·Feb 25, 2026SaveLearn
Effects of realistic laser intensity and phase distribution on high-charge laser wakefield accelerationLaser wakefield acceleration (LWFA) can produce relativistic electron beams and various secondary particles in centimeter-long plasmas, making it a valuable particle source with important…Yuhui Xia, Zhenan Wang, Ziyao Tang et al.·Feb 25, 2026SaveLearn
Collisional-radiative data for tokamak disruption mitigation modelingEffective tokamak disruption mitigation is crucial for ensuring the safety and integrity of fusion power reactors. Accurate collisional-radiative (CR) modeling of a radiative plasma is a critical…Prashant Sharma, Christopher J. Fontes, Dmitry V. Fursa et al.·Feb 25, 2026SaveLearn
Effects of Screening and Pressure Ionization on the Electron Broadening of Spectral Lines in Dense PlasmasCollisions between electrons and radiating atoms broaden spectral absorption and emission lines in dense plasmas. High densities also introduce screening and pressure ionization effects that distort…Julian P. Kinney, Stephanie B. Hansen, Thomas A. Gomez et al.·Feb 25, 2026SaveLearn
Unstable magnetic reconnection self-generates turbulenceMagnetic reconnection and turbulence are deeply intertwined in magnetohydrodynamic flows, yet how reconnection self-generates turbulence remains unclear. Using an ensemble of high-resolution…Nick Williams, Alessandro De Rosis, Alex Skillen·Feb 24, 2026SaveLearn
Passive freeze-out of the Richtmyer-Meshkov instabilityThe Richtmyer-Meshkov instability (RMI) poses a major challenge in inertial confinement fusion (ICF) due to its role in mixing and performance degradation. We report the first experimental…J. Strucka, D. M. Sterbentz, B. Lukic et al.·Feb 24, 2026SaveLearn
Kolmogorov Scaling for Total Energy and Cross Helicity in Magnetohydrodynamic TurbulenceThe problem of scaling in isotropic magnetohydrodynamic (MHD) turbulence has remained unresolved, with competing predictions of k-5/3 (Kolmogorov) and k-3/2 (Iroshnikov-Kraichnan) scalings.…Manthan Verma, Abhishek K. Jha, Mahendra K. Verma·Feb 24, 2026SaveLearn
Entropy stable numerical schemes for divergence diminishing Chew, Goldberger & Low equations for plasma flowsChew, Goldberger & Low (CGL) equations are a set of hyperbolic PDEs with non-conservative products used to model the plasma flows, when the assumption of local thermodynamic equilibrium is not valid,…Chetan Singh, Harish Kumar, Deepak Bhoriya et al.·Feb 24, 2026SaveLearn
Deuterium-Tritium Levitated Dipole Fusion Power PlantsLevitated dipole reactors offer an attractive path towards economic fusion power generation. The intrinsic decoupling of the confining magnetic field-generating REBCO magnets and the vacuum vessel…T. Simpson, R. A. Badcock, T. Berry et al.·Feb 24, 2026SaveLearn
Gyrokinetic simulation of the effect of transient fueling on plasma turbulence in ADITYA-U tokamakThe gradient-driven microturbulence in ADITYA-U tokamak plasmas has been suppressed by injecting short gas puffs. The suppression of microturbulence increases the core temperature and subsequently…Jaya Kumar Alageshan, Suman Dolui, Joydeep Ghosh et al.·Feb 23, 2026SaveLearn
Friction-induced scale-selection in the extended Cahn-Hilliard model for zonal staircaseIn this work, we describe a possible mechanism to set the radial scale of zonal flows, which may be applicable to the E × B staircase found in the global full-f simulations such as [G.…M. Leconte, T. S. Hahm·Feb 23, 2026SaveLearn
Three Dimensional Multiphysics Modelling of Helicon Wave Heating and Antenna Plasma Coupling for Boundary Density Control in Toroidal Fusion PlasmasActive control of scrape off layer density is emerging as a critical requirement for improving ion cyclotron resonance heating and enabling high performance steady state operation in future magnetic…Hua Zhou, Lei Chang, GuoSheng Xu et al.·Feb 23, 2026SaveLearn
Neoclassical transport and profile prediction in transport barriersStrong gradient regions in tokamaks, such as the pedestal or internal transport barriers, are regions of reduced turbulence where neoclassical transport can play a dominant role. However, standard…Silvia Trinczek, Felix I. Parra·Feb 22, 2026SaveLearn