Energy partition in collisionless counterstreaming plasmasFast, counter-streaming plasma outflows drive magnetic field amplification, plasma heating, and particle acceleration in numerous astrophysical environments, from supernova remnant shocks to active…Alexis Marret, Frederico Fiuza·Jan 26, 2026SaveLearn
Evidence of Langmuir/Z-mode Wave Decay into Z-mode Electromagnetic Radiation in the Solar WindThe nonlinear decay of Langmuir/Z-mode waves into electromagnetic Z-mode wave radiation at the plasma frequency is observed for the first time in the solar wind. This finding…F. J. Polanco-Rodríguez, C. Krafft, P. Savoini·Jan 26, 2026SaveLearn
Sub-ion scale current sheets in kinetic Alfv\'en wave turbulence3D kinetic particle-in-cell (PIC) simulations are performed using the kinetic Alfv\'en wave (KAW) eigenvector relations from a two-fluid model as initial conditions, in order to study turbulent…Johan Sharma, Ch Akshath Kumar, Kirit D. Makwana et al.·Jan 26, 2026SaveLearn
Plasma Decay of Nanosecond Pulsed Laser-Produced Ar and Ar-H2O Sparks at Atmospheric PressureTime-resolved diagnostics were applied to investigate free-electron properties in nanosecond laser-produced discharges sustained at atmospheric pressure in Ar and in Ar with 3% H2O. The discharges…Ji Yung Ahn, Jianan Wang, Tasnim Akbar Faruquee et al.·Jan 24, 2026SaveLearn
Hybrid collisional-radiative modeling for high-fidelity atomic kineticsThe fidelity of collisional-radiative (CR) models is critical for advancing our understanding of radiative properties and ionization balance in fusion plasmas. In this work, we present and evaluate…Prashant Sharma, Christopher J. Fontes, Mark Zammit et al.·Jan 24, 2026SaveLearn
Improved Kelbg Potentials for Z>1 and Application to Carbon PlasmasIn this work, we present a general form for the electron-ion diffractive potential derived from the quantum pair density matrix and fit to the improved Kelbg potential for atomic numbers up to $Z =…Heather D. Whitley, Michael S. Murillo, John I. Castor et al.·Jan 23, 2026SaveLearn
A kinetic-moment framework for electron energy dynamics in capacitively coupled plasmas: absorption, conversion, transport, and dissipationUnderstanding electron energy dynamics in low-temperature plasmas such as capacitively coupled plasmas (CCPs), including energy absorption, conversion, transport, and dissipation, is essential for…Jianxiong Yao, Zeduan Zhang, Feng He et al.·Jan 22, 2026SaveLearn
Density Limit Experiments and Core-localized Kinetic MHD Activities in HL-2A Ohmic Heating PlasmasThe density limit is a mysterious barrier to magnetic confinement nuclear fusion, and is still an unresolved issue. In this paper, we will present the experimental results of the density limit and…L. W. Hu, W. Chen, P. W. Shi et al.·Jan 22, 2026SaveLearn
Discovery of Density Limit Disruption Induced by Core-localized Alfv\'enic Ion Temperature Gradient Instabilities in a Tokamak PlasmaTo achieve a high energy gain, the fusion reactor plasma must reach a very high density. However, the tokamak plasmas ofen undergo disruption when the density exceeds the Greenwald density. The…Wei Chen, Liwen Hu, Jianqiang Xu et al.·Jan 22, 2026SaveLearn
Asymptotic scaling theory of electrostatic turbulent transport in magnetised fusion plasmasTurbulent transport remains one of the principal obstacles to achieving efficient magnetic confinement in fusion devices. Two of the dominant drivers of the turbulence are microscale instabilities…T. Adkins, I. G. Abel, M. Barnes et al.·Jan 21, 2026SaveLearn
Single-laser scheme for reaching strong field QED regime via direct laser accelerationWe investigate a single-laser scheme for reaching the strong-field QED regime based on direct laser acceleration (DLA) of electrons followed by their head-on collision with the same laser pulse…Robert Babjak, Marija Vranic·Jan 21, 2026SaveLearn
Electric field induced by radial redistribution of the energetic ion pressure in a fusion plasmaIt is found by using the gyrokinetic theory that significant radial electric fields, or zonal flows, can be generated by the radial redistribution of energetic ion pressure in a tokamak fusion…Shaojie Wang·Jan 21, 2026SaveLearn
Triggers for plasma detachment bifurcation in the edge divertor region of tokamaksWe report the discovery of the trigger for detachment bifurcation phenomenon in tokamak divertors, revealed through steady-state and time-dependent UEDGE simulations: The observed electron…Menglong Zhao, Thomas Rognlien, Ben Zhu et al.·Jan 21, 2026SaveLearn
Understanding Carbon Sourcing and Transport Originating from the Helicon Antenna Surfaces During High-Power Helicon Discharge in DIII-D TokamakThe high-power helicon wave system in the DIII-D tokamak introduces new plasma--material interaction (PMI) challenges due to rectified RF sheath potentials forming near antenna structures and…A. Kumar, D. Nath, W. Tierens et al.·Jan 20, 2026SaveLearn
XFEL Imaging Techniques for High Energy Density and Inertial Fusion Energy Research at HED-HiBEFThe imaging platform developed at the High Energy Density - Helmholtz International Beamline for Extreme Fields (HED-HiBEF) instrument at the European XFEL and its applications to high energy density…Alejandro Laso Garcia, Mikhail Mishchenko, Victorien Bouffetier et al.·Jan 20, 2026SaveLearn
Relativistic electron dynamics in ultra-intense lasersThese lectures at Winter School on Intense Laser Science (WiSILS-2024) at IIT Jodhpur, India, will focus on the Relativistic charge particle dynamics in ultra-intense laser pulses. We will be…Amol R Holkundkar·Jan 20, 2026SaveLearn
Reduction of SAXS Signal due to Doppler Broadening Induced Loss of CoherenceWe present an analytical and numerical study of how Doppler-induced spectral broadening in laser-heated plasmas degrades the coherence of small-angle X-ray scattering (SAXS) signals, and show that…Thomas Kluge, Uwe Hernandez Acosta, Klaus Steiniger et al.·Jan 20, 2026SaveLearn
Quasi-linear approach of bi-Kappa distributed electrons with dynamic parameter. EMEC instabilityIn recent years, significant progress has been made in the velocity-moment-based quasi-linear (QL) theory of waves and instabilities in plasmas with nonequilibrium velocity distributions (VDs) of the…Pablo S Moya, Roberto E Navarro, Marian Lazar et al.·Jan 20, 2026SaveLearn
Learning time-dependent and integro-differential collision operators from plasma phase space data using differentiable simulatorsCollisional and stochastic wave-particle dynamics in plasmas far from equilibrium are complex, temporally evolving, stochastic processes which are challenging to model. In this work, we extend…Diogo D. Carvalho, Luis O. Silva, E. Paulo Alves·Jan 19, 2026SaveLearn
Electromagnetic ghosts in pair plasmasCollisions of two weakly nonlinear, a0 1, counter-propagating EM pulses in pair plasma leave behind a long-surviving collection of localized waves, an electromagnetic ghost. Waves are…Maxim Lyutikov·Jan 19, 2026SaveLearn
Oxygen atom density and kinetics in intermediate-pressure radiofrequency capacitively-coupled plasmas in pure O2We have studied radiofrequency capacitively coupled plasmas in pure O2 using single mode laser cavity ringdown spectroscopy of oxygen atoms at 630 nm. The absolute atom densities and translational…Shu Zhang, Andrey Volynets, Garrett A. Curley et al.·Jan 19, 2026SaveLearn
Dimensional Analysis Approach to Experiments in Z pinch DevicesThe physical behavior of discharges in Z pinch devices can be completely deciphered in terms of only three dimensionless parameters. These parameters can be arranged in a way that draw a surface in…Miguel Cárdenas·Jan 19, 2026SaveLearn
SPARC Tokamak Error Field Expectations and Physics-Based Correction Coil DesignNon-axisymmetric magnetic field coils have been designed to provide efficient error field correction and suppress edge localized modes in SPARC - a compact high-field tokamak that is presently under…N. C. Logan, C. E. Myers, R. Sweeney et al.·Jan 18, 2026SaveLearn
Plasmoid formation via competing lower-hybrid drift and Kelvin-Helmholtz instabilities: A hybrid kinetic-gyrokinetic simulation studyWe investigate the nonlinear formation of plasmoids in 2D low-beta current sheets through the interplay between the Kelvin-Helmholtz instability (KHI) and the lower-hybrid drift instability (LHDI).…S. Thatikonda, F. N. De Oliveira-Lopes, A. Mustonen et al.·Jan 18, 2026SaveLearn
A Novel Numerical Algorithms Optimization Method with Machine Learning Frameworks: Application on Real-time Plasmas Equilibrium Reconstruction in EXL-50U Spherical TorusThis work proposes for the first time a novel optimization method for numerical algorithms, which takes advantages of machine learning frameworks PyTorch and TensorRT, leveraging their modularity,…G. H. Zheng, S. F. Liu, X. Gu et al.·Jan 18, 2026SaveLearn