A transformational approach to collective behaviorThis paper presents a revolutionary approach to the characterization, forecast, and control of collective systems. Collective systems are an ensemble of conservatively interacting entities. The…Michael E. Glinsky·Oct 11, 2024SaveLearn
Measurement of the electric field distribution in streamer dischargesUsing electric field induced second harmonic generation (E-FISH), we performed direction-resolved absolute electric field measurements on single-channel streamer discharges in 70 mbar (7 kPa) air…Yihao Guo, Anne Limburg, Jesse Laarman et al.·Oct 11, 2024SaveLearn
Modelling of warm dense hydrogen via explicit real time electron dynamics: Electron transport propertiesWe extract electron transport properties from atomistic simulations of a two-component plasma, by mapping the long-wavelength behaviour to a two-fluid model. The mapping procedure is performed via…Pontus Svensson, Patrick Hollebon, Daniel Plummer et al.·Oct 11, 2024SaveLearn
Effect of ambient on the dynamics of re-deposition in the rear laser ablation of a thin filmIn this work, we report an innovative pump-probe based experimental set up, to study the melting, subsequent evaporation, plasma formation and redeposition in a thin film coated on a glass substrate…Renjith Kumar R, B R Geethika, Nancy Verma et al.·Oct 10, 2024SaveLearn
Demonstration of The Brightest Nano-size Gamma SourceGamma rays selectively interact with nuclei, induce and mediate nuclear reactions and elementary particle interactions, and exceed x-rays in penetrating power and thus are indispensable for analysis…A. S. Pirozhkov, A. Sagisaka, K. Ogura et al.·Oct 9, 2024SaveLearn
Analytic model of stable shock-like structures in laser interaction with underdense plasma for identifying of phase and polarization dependent regime of laser wakefield acceleratorsWe present an analytical model describing a stable shock-like structure that is formed when an ultra-intense laser propagates through an underdense plasma. It is shown that such structures exist in a…Junjue Liao, Jihoon Kim, Gennady Shvets·Oct 9, 2024SaveLearn
Effect of polarization on spectroscopic characterization of laser produced aluminium plasmaLaser-induced breakdown spectroscopy (LIBS) is a well-established technique widely used in fundamental research and diverse practical fields. Polarization-resolved LIBS, a variant of this technique,…B. R. Geethika, Jinto Thomas, Renjith Kumar R et al.·Oct 9, 2024SaveLearn
Unified mesoscale picture of nonlinear generation of zonal flows in toroidal geometryRecent experimental findings on limit-cycle-oscillations indicate that the nonlinear driving of the turbulent poloidal Reynolds stress to zonal flows is not a significant factor in the toroidal…Zihao Wang, Shaojie Wang·Oct 9, 2024SaveLearn
Nonlinear evolution of a cold non-relativistic electron-ion plasma with an arbitrary initial density profile: A phase mixing perspectiveUsing a perturbative approach, an evolution equation for the space charge density, correct up to the third order, is deduced for arbitrary initial density profiles of the electron and ion fluids in a…Subhasish Bag, Vikrant Saxena·Oct 9, 2024SaveLearn
Nonlinear Cnoidal Waves and Formation of Patterns and Coherent Structures in Intense Charged Particle BeamsThe longitudinal dynamics of an intense high energy beam moving in a resonator cavity has been studied in some detail. Through the method of separation of variables and its obvious straightforward…Stephan I. Tzenov, Anton A. Volodin·Oct 9, 2024SaveLearn
Impact of the local field correction on transport and dynamic properties of warm dense matterThe plasma screening model, taking into account the electronic exchange-correlation effects and the ionic non-ideality in dense quantum plasmas, is presented. This model can be used as an input in…S. K. Kodanova, T. S. Ramazanov, M. K. Issanova·Oct 9, 2024SaveLearn
Two dimensional modelling of the interaction between electromagnetic waves and plasma-metamaterial composite structures using the particle-in-cell methodIn this work we (i) extend previous 1D studies of electromagnetic (EM) wave propagation in an over-dense plasma-metamaterial composite into two spatial dimensions and (ii) study blocking of EM waves…D. Tsiklauri, I. Morrison·Oct 8, 2024SaveLearn
Hamiltonian structure of single-helicity, incompressible magnetohydrodynamics and application to magnetorotational instabilityA four-field reduced model of single helicity, incompressible MHD is derived in cylindrical geometry. An appropriate set of noncanonical variables is found, and the Hamiltonian, the Lie-Poisson…M. Furukawa, M. Hirota·Oct 8, 2024SaveLearn
Numerical analysis of partial discharge ignition in H2 bubbles floating in dielectric oils, for High-Voltage Solid State Transformer applicationsWe report on a self-consistent numerical analysis campaign of partial discharge (PD) ignition in H2 bubbles floating in biobased dielectric oils. We investigate various configurations (bubble sizes,…Konstantinos Kourtzanidis, Panagiotis Dimitrakellis, Dimitrios Rakopoulos·Oct 8, 2024SaveLearn
Particle-in-cell simulations of the tearing instability for relativistic pair plasmasTwo-dimensional particle-in-cell (PIC) simulations explore the collisionless tearing instability developing in a Harris equilibrium configuration in a pair (electron-positron) plasma, with no guide…K. M. Schoeffler, B. Eichmann, F. Pucci et al.·Oct 8, 2024SaveLearn
Tritium-Lean Fusion Power Plants with Asymmetric Deuterium-Tritium Transport and PumpingAsymmetries in deuterium-tritium (D-T) particle transport and divertor pumping speeds are shown to enhance tritium self-sufficiency in fusion power plants. Using a diffusive particle transport model…J. F. Parisi, S. Meschini, A. Rutkowski et al.·Oct 7, 2024SaveLearn
Dense Plasma Opacity from Excited States MethodThe self-consistent inclusion of plasma effects in opacity calculations is a significant modeling challenge. As density increases, such effects can no longer be treated perturbatively. Building on a…C. E. Starrett, C. J. Fontes, H. B. Tran Tan et al.·Oct 7, 2024SaveLearn
Classical molecular dynamic simulation to assess the non-Maxwellian behavior of inverse bremsstrahlung heating in weakly coupled plasmasClassical molecular-dynamics simulations (CMDS) have been conducted to investigate the non-Maxwellian behavior of a weakly coupled plasma submitted to the inverse bremsstrahlung heating of laser…Ronan Devriendt, Olivier Poujade·Oct 7, 2024SaveLearn
Formulation of a one-dimensional electrostatic plasma model for testing the validity of kinetic theoryWe present a one-dimensional (1-D) model composed of aligned, electrostatically interacting charged disks, conceived in order to address in a computable model the validity of the Bogoliubov…Francesco Pegoraro, Philip J. Morrison, Davide Manzini et al.·Oct 7, 2024SaveLearn
Omnigenous stellarator equilibria with enhanced stabilityTo build an economically viable stellarator, it is essential to find a configuration that satisfies a set of favorable properties to achieve efficient steady-state nuclear fusion. One such property…Rahul Gaur, Rory Conlin, David Dickinson et al.·Oct 6, 2024SaveLearn
Enhancement to Fusion Reactivity in Sheared FlowsSheared flow increases the reactivity of fusion plasma. In unmagnetized plasma with flow gradients comparable to the mean free path of reacting ions, fusion reactivity can be more than doubled. The…Henry Fetsch, Nathaniel J. Fisch·Oct 4, 2024SaveLearn
Applicability criteria of proper charge neutrality and special relativistic MHD models extended by two-fluid effectsThe applicability of relativistic magnetohydrodynamics (RMHD) and its generalization to two-fluid models (including the Hall and inertial effects) is systematically investigated by using the method…Shuntaro Yoshino, Makoto Hirota, Yuji Hattori·Oct 4, 2024SaveLearn
Gyrokinetic Electromagnetic Particle Simulations in Triangular Meshes with C1 Finite ElementsThe triangular mesh-based gyrokinetic scheme enables comprehensive axis-to-edge studies across the entire plasma volume. Our approach employs triangular finite elements with first-derivative…Zhixin Lu, Guo Meng, Roman Hatzky et al.·Oct 4, 2024SaveLearn
Reduced modeling of scrape-off losses of runaway electrons during tokamak disruptionsAccurate modeling of runaway electron generation and losses during tokamak disruptions is crucial for the development of reactor-scale tokamak devices. In this paper we present a reduced model for…Oskar Vallhagen, Lise Hanebring, Tünde Fülöp et al.·Oct 4, 2024SaveLearn
A Comparative Analysis of Relativistic Particle Pushers vis-à-vis Computation Time & AccuracyThe performance of relativistic particle pushers has long been a topic of interest in the field of computational plasma physics, particularly from the point of view of the particle-in-cell approach.…Mohammad Yasir, Vikrant Saxena·Oct 4, 2024SaveLearn