A Particle-in-cell Method for Plasmas with a Generalized Momentum Formulation, Part I: Model FormulationThis paper formulates a new particle-in-cell method for the Vlasov-Maxwell system. Under the Lorenz gauge condition, Maxwell's equations for the electromagnetic fields can be written as a…Andrew J. Christlieb, William A. Sands, Stephen White·Aug 24, 2022SaveLearn
Charge-optimized many-body interaction potential for AlN revisited to explore plasma-surface interactionsPlasma-surface interactions during AlN thin film sputter deposition could be studied by means of reactive molecular dynamics (RMD) methods. This requires an interaction potential that describes all…Tobias Gergs, Thomas Mussenbrock, Jan Trieschmann·Aug 24, 2022SaveLearn
Scaling laws for electron kinetic effects in tokamak scrape-off layer plasmasTokamak edge (scrape-off layer) plasmas can exhibit non-local transport in the direction parallel to the magnetic field due to steep temperature gradients. This effect along with its consequences has…Dominic Power, Stefan Mijin, Michael Wigram et al.·Aug 23, 2022SaveLearn
Hierarchical foliation of one-dimensional Vlasov-Poisson systemWe elucidate the intermediate of the macroscopic fluid model and the microscopic kinetic model by studying the Poisson algebraic structure of the one-dimensional Vlasov-Poisson system. The water-bag…K. Maekaku, Z. Yoshida·Aug 23, 2022SaveLearn
New linear stability parameter to describe low-β electromagnetic microinstabilities driven by passing electrons in axisymmetric toroidal geometryIn magnetic confinement fusion devices, the ratio of the plasma pressure to the magnetic field energy, β, can become sufficiently large that electromagnetic microinstabilities become unstable,…M. R. Hardman, F. I. Parra, B. S. Patel et al.·Aug 22, 2022SaveLearn
Greedy permanent magnet optimizationA number of scientific fields rely on placing permanent magnets in order to produce a desired magnetic field. We have shown in recent work that the placement process can be formulated as sparse…Alan A. Kaptanoglu, Rory Conlin, Matt Landreman·Aug 22, 2022SaveLearn
Laboratory modelling of solar wind interaction with Lunar Magnetic AnomaliesThe paper presents results of laboratory experiment modeling the interaction between Lunar magnetic anomalies and Solar wind. To model the LMA we use quadrupole magnetic field. The main dimentionless…M. S. Rumenskikh, A. A. Chibranov, M. A. Efimov et al.·Aug 22, 2022SaveLearn
Frequency multiplication with toroidal mode number of kink/fishbone modes on a static HL-2A-like tokamakIn the presence of energetic particles (EPs), the Long-Lived Mode (LLM) frequency multiplication with n = 1,2,3 or higher is often observed on HL-2A, where n is the toroidal mode number. Hybrid…Zhihui Zou, Ping Zhu, Charlson C. Kim et al.·Aug 21, 2022SaveLearn
Evaluation of the suitable analytical techniques for the investigation of the toxic elements and compounds in the Pyrotechnic materials (Green crackers)The present manuscript reports the elemental as well as molecular study of the Green Crackers. Laser-induced breakdown spectroscopy has been used for elemental analysis, UV-Vis and Photoacoustic…Darpan Dubey, Rohit Kumar, Abhishek Dwivedi et al.·Aug 20, 2022SaveLearn
Transferable Cross-Tokamak Disruption Prediction with Deep Hybrid Neural Network Feature ExtractorPredicting disruptions across different tokamaks is a great obstacle to overcome. Future tokamaks can hardly tolerate disruptions at high performance discharge. Few disruption discharges at high…Wei Zheng, Fengming Xue, Ming Zhang et al.·Aug 20, 2022SaveLearn
Hamiltonian Formulations of Quasilinear Theory for Magnetized PlasmasHamiltonian formulations of quasilinear theory are presented for the cases of uniform and nonuniform magnetized plasmas. First, the standard quasilinear theory of Kennel and Engelmann (1966) is…Alain J. Brizard, Anthony A. Chan·Aug 19, 2022SaveLearn
Full Self-Consistent Vlasov-Maxwell SolutionFull self-consistent stationary Vlasov-Maxwell solutions of magnetically confined plasmas are built for systems with cylindrical symmetries. The stationary solutions are thermodynamic equilibrium…Aurélien Cordonnier, Xavier Leoncini, Guilhem Dif-Pradalier et al.·Aug 19, 2022SaveLearn
Triggering of tearing instability by impurity radiation through resistive interchange reversal in a tokamakRecent MHD simulations find that the reversal of the local resistive interchange parameter DR from negative to positive due to impurity radiation cooling is able to trigger the resistive tearing…Shiyong Zeng, Ping Zhu, Ruijie Zhou et al.·Aug 19, 2022SaveLearn
Reconstruction of tokamak plasma safety factor profile using deep learningIn tokamak operations, accurate equilibrium reconstruction is essential for reliable real-time control and realistic post-shot instability analysis. The safety factor (q) profile defines the magnetic…Xishuo Wei, Ge Dong, Shuying Sun et al.·Aug 18, 2022SaveLearn
Laser pulse compression by a density gradient plasma for exawatt to zettawatt lasersWe propose a new method for laser pulse compression that uses the spatially varying dispersion of a plasma plume with a density gradient. This novel scheme can be used to compress ultrahigh power…Min Sup Hur, Bernhard Ersfeld, Hyojeong Lee et al.·Aug 18, 2022SaveLearn
Mechanisms to control laser-plasma coupling in laser wakefield electron accelerationExperimental results, supported by precise modelling, demonstrate optimisation of a plasma-based injector with intermediate laser pulse energy (<1 J), corresponding to a normalised vector potential…L. T. Dickson, C. I. D. Underwood, F. Filippi et al.·Aug 17, 2022SaveLearn
Relating the Phases of Magnetic Reconnection Growth to the Temporal Evolution of X-line Structures in a Collisionless PlasmaThe efficiency of energy conversion during magnetic reconnection is related to the reconnection rate. While the stable reconnection rate has been studied extensively, its growth between the time of…D. S. Payne, R. B. Torbert, K. Germaschewski et al.·Aug 17, 2022SaveLearn
Modeling of bound electron effects in particle-in-cell simulationTo include the bound electron effects in particle-in-cell (PIC) simulation, we propose a model in which the response of the dipole components of partially ionized ions to external electromagnetic…Xiangyan An, Min Chen, Zheng-Ming Sheng et al.·Aug 17, 2022SaveLearn
Quantitative modeling of streamer discharge branching in airStreamer discharges are the primary mode of electric breakdown of air in lightning and high voltage technology. Streamer channels branch many times, which determines the developing tree-like…Zhen Wang, Siebe Dijcks, Yihao Guo et al.·Aug 15, 2022SaveLearn
Do chaotic field lines cause fast reconnection in coronal loops?Over the past decade, Boozer has argued that three-dimensional (3D) magnetic reconnection fundamentally differs from two-dimensional (2D) reconnection due to the fact that the separation between any…Yi-Min Huang, Amitava Bhattacharjee·Aug 15, 2022SaveLearn
Non-Linear Ablative Rayleigh-Taylor Instability: Increased Growth due to Self-Generated Magnetic FieldsThe growth rate of the non-linear ablative Rayleigh-Taylor (RT) instability is enhanced by magnetic fields self-generated by the Biermann battery mechanism; a scaling for this effect with…C. A. Walsh, D. S. Clark·Aug 15, 2022SaveLearn
The Plasma Structures and Networks of Channels as Components of The Sequential Mechanism of Lightning Initiation Within Thunder CloudsThe dissertation describes in detail the experimental studies of the initiation of unusual plasma formations (UPFs) in the electric field of an artificially charged aerosol cloud. These experiments,…Alexander Kostinskiy·Aug 15, 2022SaveLearn
Numerical simulations of a continuously injected relativistic electron beam relaxation into a plasma with large-scale density gradientsIn this paper the influence of large-scale decreasing and increasing gradients of the density of magnetized plasma on the relaxation process of a continuously injected relativistic electron beam with…Vladimir Annenkov, Evgeniia Volchok·Aug 14, 2022SaveLearn
Self-Sustained Non-Equilibrium Co-existence of Fluid and Solid States in a Strongly Coupled Complex Plasma SystemA complex (dusty) plasma system is well known as a paradigmatic model for studying the kinetics of solid-liquid phase transitions in inactive condensed matter. At the same time, under certain…M. G Hariprasad, P. Bandyopadhyay, V. S. Nikolaev et al.·Aug 13, 2022SaveLearn
Optimizing laser coupling, matter heating, and particle acceleration from solids using multiplexed ultraintense lasersRealizing the full potential of ultrahigh-intensity lasers for particle and radiation generation will require multi-beam arrangements due to technology limitations. Here, we investigate how to…Weipeng Yao, Motoaki Nakatsutsumi, Sébastien Buffechoux et al.·Aug 12, 2022SaveLearn