Construction of an invertible mapping to boundary conforming coordinates for arbitrarily shaped toroidal domainsBoundary conforming coordinates are commonly used in plasma physics to describe the geometry of toroidal domains, for example, in three-dimensional magnetohydrodynamic equilibrium solvers. The…Robert Babin, Florian Hindenlang, Omar Maj et al.·Nov 7, 2024SaveLearn
The High-Order Magnetic Near-Axis Expansion: Ill-Posedness and RegularizationWhen analyzing stellarator configurations, it is common to perform an asymptotic expansion about the magnetic axis. This so-called near-axis expansion is convenient for the same reason asymptotic…Maximilian Ruth, Rogerio Jorge, David Bindel·Nov 7, 2024SaveLearn
Dynamic properties of the warm dense uniform electron gas with the qSTLS dielectric schemeThe recently derived Fourier--Matsubara expansion of imaginary--time correlation functions comprises an exact result of linear response theory for finite-temperature quantum many-body systems. In its…Panagiotis Tolias, Fotios Kalkavouras, Tobias Dornheim et al.·Nov 7, 2024SaveLearn
Relativistic reference frame PIC simulations for electron beam dynamics with meter-scale propagation inside plasma and under external fieldsParticle in cell simulations are widely used in most fields of physics to investigate known and new phenomena which cannot be directly observed or measured yet. However, the computational and time…Driss Oumbarek Espinos, Alexei Zhidkov, Alexandre Rondepierre et al.·Nov 7, 2024SaveLearn
Laser initiated p-11B fusion reactions in petawatt high-repetition-rates laser facilitiesDriving the nuclear fusion reaction p+11B -> 3 alpha + 8.7 MeV in laboratory conditions, by interaction between high-power laser pulses and matter, has become a popular field of research, due to…M. Scisciò, G. Petringa, Z. Zhu et al.·Nov 7, 2024SaveLearn
FLAIM: A reduced volume ignition model for the compression and thermonuclear burn of spherical fuel capsulesWe present the "First Light Advanced Ignition Model" (FLAIM), a reduced model for the implosion, adiabatic compression, volume ignition and thermonuclear burn of a spherical DT fuel capsule…Abd Essamade Saufi, Hannah Bellenbaum, Martin Read et al.·Nov 6, 2024SaveLearn
Fast particle trajectories and integrability in quasiaxisymmetric and quasihelical stellaratorsEven if the magnetic field in a stellarator is integrable, phase-space integrability for energetic particle guiding center trajectories is not guaranteed. Both trapped and passing particle…Amelia Chambliss, Elizabeth Paul, Stuart Hudson·Nov 6, 2024SaveLearn
Collisional charging of dust particles by suprathermal particles. I -- Standard anisotropic Kappa distributionsWe study the effect of the velocity distributions of the plasma particles on the equilibrium charge of dust particles which suffer collisional charging, considering different forms of both isotropic…Luiz Fernando Ziebell, Rudi Gaelzer·Nov 5, 2024SaveLearn
Electron dynamics and particle transport in capacitively coupled Ar/O2 discharges driven by sawtooth up voltage waveformsOne dimensional fluid/electron Monte Carlo simulations of capacitively coupled Ar/O2 discharges driven by sawtooth up voltage waveforms are performed as a function of the number of consecutive…Wan Dong, Zhuo-Yao Gao, Li Wang et al.·Nov 5, 2024SaveLearn
Quantum Ornstein-Zernike Theory for Two-Temperature Two-Component PlasmasLaboratory plasma production almost always preferentially heats either the ions or electrons, leading to a two-temperature state. High-fidelity modeling of these systems can be achieved with density…Zachary A. Johnson, Nathaniel R. Shaffer, Michael S. Murillo·Nov 4, 2024SaveLearn
An explicit numerical scheme for Milne's phase-amplitude equationsWe propose an explicit numerical method to solve Milne's phase-amplitude equations. Previously proposed methods solve directly Milne's nonlinear equation for the amplitude. For that reason,…R. Piron, M. Tacu·Nov 4, 2024SaveLearn
Building robust surrogate models of laser-plasma interactions using large scale PIC simulationAs the repetition rates of ultra-high intensity lasers increase, simulations used for the prediction of experimental results may need to be augmented with machine learning to keep up. In this paper,…Nathan Smith, Christopher Ridgers, Kate Lancaster et al.·Nov 4, 2024SaveLearn
Dynamical structure factors of Warm Dense Matter from Time-Dependent Orbital-Free and Mixed-Stochastic-Deterministic Density Functional TheoryWe present the first calculations of the inelastic part of the dynamical structure factor (DSF) for warm dense matter (WDM) using Time-Dependent Orbital-Free Density Functional Theory (TD-OF-DFT) and…Alexander J. White·Oct 31, 2024SaveLearn
X point effects on the ideal MHD modes in tokamaks in the description of dual-poloidal-region safety factorThe flux coordinates with dual-region safety factor (q) in the poloidal direction are developed in this work. The X-point effects on the ideal MHD modes in tokamaks are then analyzed using this…Linjin Zheng, M. T. Kotschenreuther, F. L. Waelbroeck et al.·Oct 31, 2024SaveLearn
Efficient optimization of plasma surface high harmonic generation by an improved Bayesian strategyPlasma surface high-order harmonics generation (SHHG) driven by intense laser pulses on plasma targets enables a high-quality extreme ultraviolet source with high pulse energy and outstanding…Lili Fan, Ziwei Wang, Chenfei Liao et al.·Oct 31, 2024SaveLearn
Piecewise Field-Aligned Finite Element Method for Multi-Mode Nonlinear Particle Simulations in tokamak plasmasThis paper presents a novel approach for simulating plasma instabilities in tokamak plasmas using the piecewise field-aligned finite element method in combination with the particle-in-cell method.…Zhixin Lu, Guo Meng, Eric Sonnendrücker et al.·Oct 31, 2024SaveLearn
Plasma Light As Diagnostic For Wakefields Driven By Developing Self-Modulation Of A Long Particle BunchWe outline plans to use plasma light emitted as atomic lines radiation as a diagnostic for wakefields driven in plasma by a self-modulating, long proton bunch. This diagnostic is built into the…P. Muggli, M. Bergamaschi, J. Pucek et al.·Oct 31, 2024SaveLearn
On the density-density correlations of the non-interacting finite temperature electron gasThe density-density correlations of the non-interacting finite temperature electron gas are discussed in detail. Starting from the ideal linear density response function and utilizing general…Panagiotis Tolias, Tobias Dornheim, Jan Vorberger·Oct 30, 2024SaveLearn
Diffusion and turbulence in phase-space and formation of phase-space vorticesIn this work, the recently introduced fluid-like treatment of the phase-space has been further extended and some interesting outcomes have been presented. A modified form of the Vlasov equation has…Allen Lobo, Vinod Kumar Sayal·Oct 30, 2024SaveLearn
Multi-Physics Mathematical Model for Weakly-Ionized Plasma FlowsThis work presents a multidisciplinary mathematical model, as a set of coupled governing equations and auxiliary relations describing the fluid-flow, thermal, and electric fields of partially-ionized…Osama A. Marzouk·Oct 29, 2024SaveLearn
Effects of size of an oxide layer on the surface properties of lithium irradiated by deuterium plasmaWe investigate how growth of an oxide film will influence the deuterium recycling properties of Li on plasma facing surfaces. Lithium films on the walls or plasma-facing material surfaces of a fusion…P. S. Krstic, A. Maan. R. Majeski, B. E. Koel·Oct 29, 2024SaveLearn
Hollow Beam Optical Ponderomotive Trap for Ultracold Neutral PlasmaRapidly oscillating, inhomogeneous electromagnetic field from laser exert a force that repels charged particles from regions of high light intensity. We propose and analyze a flat-bottomed…S. A. Saakyan·Oct 28, 2024SaveLearn
Resistive tearing: numerical exploration of nonmodal effectsThe fluid dynamics community has found success in explaining both the onset and coherent structure formation in wall-bounded turbulence through examining transient growth and pseudoresonance. Whether…Elias Pratschke·Oct 28, 2024SaveLearn
Impurity radiation seeding of neoclassical tearing mode growthThe physics of neoclassical tearing mode (NTM) is of great concern to the tokamak plasma stability and performance, especially in the burning plasma regime. Whereas a great deal about the different…Shiyong Zeng, Ping Zhu, Eric C. Howell·Oct 28, 2024SaveLearn
Axial Confinement in the Novatron Mirror MachineThe Novatron magnetic mirror fusion reactor concept features significant advantages. These include stability against MHD interchange and kinetic DCLC modes, axisymmetry, and minimized radial particle…J. Scheffel, J. Jäderberg, K. Bendtz et al.·Oct 26, 2024SaveLearn