On the decay instability of electron acoustic wavesElectron acoustic waves (EAWs) are nonlinear plasma modes characterized by electron trapping, which suppresses the usual Landau damping. Despite being predicted in the 1990s, their excitation and…F. Valentini, T. M. O'Neil, D. H. Dubin·Mar 21, 2025SaveLearn
Turnstile area as a measure for chaotic transport in magnetic confinement fusion devicesWe analyze stochasticity in the magnetic fields of magnetic confinement fusion reactors by calculating the lobe areas of turnstiles - a method developed for characterizing transport into and out of…Christopher Berg Smiet, Ludovic Rais, Joaquim Loizu et al.·Mar 20, 2025SaveLearn
Expansion-Driven Self-Magnetization of High-Energy-Density PlasmasUnderstanding plasma self-magnetization is one of the fundamental challenges in both laboratory and astrophysical plasmas. Self-magnetization can modify the plasma transport properties, altering the…K. V. Lezhnin, S. R. Totorica, J. Griff-McMahon et al.·Mar 19, 2025SaveLearn
Laser pulse focusing and energetic electron generation by magnetized plasma lensAn efficient mechanism of laser pulse focusing with the help of shaped underdense plasma target immersed in inhomogeneous magnetic field has been demonstrated. These studies have been carried out…Trishul Dhalia, Rohit Juneja, Amita Das·Mar 19, 2025SaveLearn
Symplectic integration of guiding-center equations in canonical coordinates for general toroidal fieldsSymplectic integrators with long-term preservation of integrals of motion are introduced for the guiding-center model of plasma particles in toroidal magnetic fields of general topology. An efficient…Christopher G. Albert, Georg S. Grassler, Sergei V. Kasilov et al.·Mar 19, 2025SaveLearn
Arbitrary-velocity laser pulses in plasma waveguidesSpace-time structured laser pulses feature an intensity peak that can travel at an arbitrary velocity while maintaining a near-constant profile. These pulses can propagate in uniform media, where…J. P. Palastro, K. G. Miller, M. R. Edwards et al.·Mar 19, 2025SaveLearn
Chaos aided regime of Laser/Electromagnetic Energy Absorption by plasmaThe absorption of laser energy by plasma is of paramount importance for various applications. Collisional and resonant processes are often invoked for this purpose. However, in some contexts (e.g. in…Rohit Juneja, Amita Das, Trishul Dhalia et al.·Mar 19, 2025SaveLearn
Comparative Analysis of Hall Effect Implementations in Hall-MagnetohydrodynamicsThere is no standard numerical implementation of the Hall effect, which is one of the non-ideal magnetohydrodynamic (MHD) effects. Numerical instability arises when a simple implementation is used,…Kazunari Iwasaki, Kengo Tomida·Mar 19, 2025SaveLearn
Scaling of Particle Heating in Shocks and Magnetic ReconnectionParticles are heated efficiently through energy conversion processes such as shocks and magnetic reconnection in collisionless plasma environments. While empirical scaling laws for the temperature…Mitsuo Oka, Tai D. Phan, Marit Øieroset et al.·Mar 19, 2025SaveLearn
Visualization of high-intensity laser-matter interactions in virtual reality and web browserWe present the Virtual Beamline (VBL) application, an interactive web-based platform for visualizing high-intensity laser-matter interactions using particle-in-cell (PIC) simulations, with future…Martin Matys, James P. Thistlewood, Mariana Kecová et al.·Mar 18, 2025SaveLearn
Electromagnetic field solver for QED polarization in super-strong magnetic fields of magnetar and laser plasmasSuper-strongly magnetized plasmas play a crucial role in extreme environments of magnetar and laboratory laser experiments, demanding comprehensive understanding of how quantum electrodynamic (QED)…Mahmoud Alawashra, Jan Benáček, Martin Pohl et al.·Mar 18, 2025SaveLearn
Grid instability growth rates for explicit, electrostatic momentum- and energy-conserving particle-in-cell algorithmsWhen the Debye length is not resolved in a simulation using the most common particle-in-cell (PIC) algorithm, the plasma will unphysically heat until the Debye length becomes resolved via a…Luke C Adams, Gregory R Werner, John R Cary·Mar 17, 2025SaveLearn
On the electrons really contributing to dc conductivity of warm dense matterAtomic properties of warm dense matter is an active field of research. Understanding transport properties of these states is essential for providing coefficients needed by magneto-radiative…Nadine Wetta, Jean-Christophe Pain·Mar 17, 2025SaveLearn
Unveiling a New β-Scaling of the Tearing Instability in Weakly Collisional PlasmasWe investigate the linear tearing instability in weakly collisional plasmas using a non-ideal gyrotropic-MHD framework, uncovering a previously unknown scaling relation for the instability growth…Gabriel L. Ferreira-Santos, Grzegorz Kowal, Diego A. Falceta-Gonçalves·Mar 16, 2025SaveLearn
Integration of Machine Learning-Based Plasma Acceleration Simulations into Geant4: A Case Study with the PALLAS ExperimentWe present the development and integration of a Machine Learning (ML)-based surrogate model, trained on Particle-In-Cell (PIC) simulations of laser-driven plasma wakefield acceleration source of…A. Sytov, K. Cassou, V. Kubytskyi et al.·Mar 15, 2025SaveLearn
Revisiting compressible and incompressible pressure-strain interaction in kinetic plasma turbulenceIn this study, we revisit the pressure-strain interaction in kinetic turbulence, and in particular we re-examine the decomposition of pressure-strain interaction into compressive and incompressive…Subash Adhikari, Yan Yang, William H. Matthaeus·Mar 14, 2025SaveLearn
Predictive study of non-axisymmetric neutral beam ion loss on the upgraded KSTAR plasma-facing componentsWe simulate ion loss induced by neutral beam injection (NBI) in three-dimensional (3D) space with high fidelity on the plasma-facing components (PFCs) of the Korea Superconducting Tokamak Advanced…Taeuk Moon, Tongnyeol Rhee, Jae-Min Kwon et al.·Mar 14, 2025SaveLearn
Machine-learning heat flux closure for multi-moment fluid modeling of nonlinear Landau dampingNonlinear plasma physics problems are usually simulated through comprehensive modeling of phase space. The extreme computational cost of such simulations has motivated the development of multi-moment…Ziyu Huang, Chuanfei Dong, Liang Wang·Mar 14, 2025SaveLearn
Operation above the Greenwald density limit in high performance DIII-D negative triangularity dischargesThe density limit in strongly-shaped negative triangularity (NT) discharges is studied experimentally in the DIII-D tokamak. Record-high Greenwald fractions fG are obtained, using gas puff…O Sauter, R. Hong, A. Marinoni et al.·Mar 13, 2025SaveLearn
Enhanced MVA of Polarized Proton Beams via PW Laser-Driven Plasma BubbleThe significance of laser-driven polarized beam acceleration has been increasingly recognized in recent years. We propose an efficient method for generating polarized proton beams from a…Zhikun Zou, Gan Guo, Meng Wen et al.·Mar 13, 2025SaveLearn
Machine-learned trends in mirror configurations in the Large Plasma DeviceThis study demonstrates the efficacy of ML-based trend inference using data from the Large Plasma Device (LAPD). The LAPD is a flexible basic plasma science device with a high discharge repetition…Phil Travis, Jacob Bortnik, Troy Carter·Mar 12, 2025SaveLearn
Magnetohydrodynamic Operating Regimes of Pulsed Plasma Accelerators for Efficient Propellant UtilizationThe presence of magnetohydrodynamic (MHD) acceleration modes in pulsed plasma thrusters has been verified using the magnetic extension of Rankine-Hugoniot theory. However, the impact of initial…Ethan Horstman, Adrian Woodley, Thomas C. Underwood·Mar 11, 2025SaveLearn
Validation of a Comprehensive First-Principles-Based Framework for Predicting the Performance of Future StellaratorsThis paper presents the validation of the GENE-KNOSOS-Tango framework for recovering both the steady-state plasma profiles in the considered radial domain and selected turbulence trends in…D. L. C. Agapito Fernando, A. Bañón Navarro, D. Carralero et al.·Mar 11, 2025SaveLearn
Ultrarelativistic outflows in asymmetric magnetic reconnectionWe present a one-fluid pair plasma magnetohydrodynamical model for asymmetric relativistic magnetic reconnection that incorporates the thermal-inertial effects of the plasma. We find the general…Maricarmen A. Winkler, Felipe A. Asenjo·Mar 11, 2025SaveLearn
Testing for Markovian character of transfer of fluctuations in solar wind turbulence on kinetic scalesWe apply statistical analysis to search for processes responsible for turbulence in physical systems. In our previous studies, we have shown that solar wind turbulence in the inertial range of large…Dariusz Wójcik, Wiesław M. Macek·Mar 10, 2025SaveLearn