On the validity of quasilinear theory applied to the electron bump-on-tail instabilityThe accuracy of quasilinear theory applied to the electron bump-on-tail instability, a classic model problem, is explored with conservative high-order discontinuous Galerkin methods applied to both…D. W. Crews, U. Shumlak·Feb 28, 2022SaveLearn
Comparison between MAST-U conventional and Super-X configurations through SOLPS-ITER modellingMAST-U has recently started operating with a Super-X divertor, designed to increase total flux expansion and neutral trapping, both predicted through simple analytic models and SOLPS calculations to…Alexandre Fil, Bruce Lipschultz, David Moulton et al.·Feb 25, 2022SaveLearn
The hidden uncertainties in particle balance calculations and their implications for assessment of plasma performancePredictive simulations of mixed plasma discharges, like deuterium-tritium plasmas, rely on self-consistent models for particle transport. These models have to be validated with interpretive analysis…A. A. Teplukhina, F. M. Poli, M. Podesta et al.·Feb 25, 2022SaveLearn
Laboratory observation of plasmoid-dominated magnetic reconnection in hybrid collisional-collisionless regimeMagnetic reconnection, breaking and reorganization of magnetic field topology, is a fundamental process for rapid release of magnetic energy into plasma particles that occurs pervasively throughout…Z. H. Zhao, H. H. An, Y. Xie et al.·Feb 25, 2022SaveLearn
Direct evidence of magnetic reconnection onset via the tearing instabilityMagnetic reconnection is a sporadic process responsible for energy release in space and laboratory plasmas. It is believed that the tearing mode instability may be responsible for the onset of…Mayur R. Bakrania, I. Jonathan Rae, Andrew P. Walsh et al.·Feb 24, 2022SaveLearn
Coherence of ion cyclotron resonance for damping ion cyclotron waves in space plasmasIon cyclotron resonance is one of the fundamental energy conversion processes through field-particle interaction in collisionless plasmas. However, the key evidence for ion cyclotron resonance (i.e.,…Qiaowen Luo, Xingyu Zhu, Jiansen He et al.·Feb 24, 2022SaveLearn
New procedure to estimate plasma parameters through the q-Weibull distribution by using a Langmuir probe in a cold plasmaWe describe a procedure to obtain the plasma parameters from the I-V Langmuir curve by using the Druyvesteyn equation. We propose to include two new parameters, q and r, to the usual plasma…F J Gonzalez, J I Gonzalez, S Soler et al.·Feb 24, 2022SaveLearn
Nonlinear Coupling of Electromagnetic and Spin-Electron-Acoustic Waves in Spin-polarized Degenerate Relativistic Astrophysical PlasmaPropagation of the finite amplitude electromagnetic wave through the partially spin-polarized degenerate plasmas leads to the instability. The instability happens at the interaction of the…Pavel A. Andreev·Feb 23, 2022SaveLearn
Efficient numerical algorithm for multi-level ionization of high-atomic-number gasesAn efficient numerical algorithm for the laser driven multi-level ionization of high-atomic-number gases is proposed and implemented in an electromagnetic particle-in-cell code SPACE. The algorithm…Aiqi Cheng, Roman Samulyak·Feb 22, 2022SaveLearn
Observation of Long-Radial-Range-Correlation in Turbulence in High-Collisionality High-Confinement Fusion PlasmasWe report on the observation of spatially asymmetric turbulent structures with a long radial correlation length in the core of high-collisionality H-mode plasmas on DIII-D tokamak. These turbulent…R. Hong, T. L. Rhodes, P. H. Diamond et al.·Feb 20, 2022SaveLearn
Local analysis of fast magnetic reconnectionFast magnetic reconnection is defined by the topology of the magnetic field lines changing on a timescale that is approximately an order of magnitude longer than the topology-conserving…Allen H Boozer·Feb 19, 2022SaveLearn
Bispectral analysis of nonlinear mixing in a periodically driven Korteweg-de Vries systemThe nonlinear response of a periodically driven Korteweg-de Vries model system is studied using a variety of nonlinear drivers and compared to previous results obtained for a purely time-dependent…Ajaz Mir, Sanat Tiwari, Abhijit Sen·Feb 19, 2022SaveLearn
Self-Consistent Relaxation Theory of Collective Ion Dynamics in Yukawa One-Component Plasmas under Intermediate Screening RegimesThe self-consistent relaxation theory is employed to describe the collective ion dynamics in strongly coupled Yukawa classical one-component plasmas. The theory is applied to equilibrium states…Anatolii V. Mokshin, Ilnaz I. Fairushin, Igor M. Tkachenko·Feb 18, 2022SaveLearn
Magnetic reconnection in the era of exascale computing and multiscale experimentsAstrophysical plasmas have the remarkable ability to preserve magnetic topology, which inevitably gives rise to the accumulation of magnetic energy within stressed regions including current sheets.…Hantao Ji, William Daughton, Jonathan Jara-Almonte et al.·Feb 18, 2022SaveLearn
Analysis of a kinetic model for electron heat transport in inertial confinement fusion plasmasTo determine the electron heat flux density on macroscopic scales, the most widely used approach is to solve a diffusion equation through a multi-group technique. This method is however restricted to…A. Chrisment, P. Loiseau, J. -L. Feugeas et al.·Feb 17, 2022SaveLearn
Nonlinear dynamical modelling of high frequency electrostatic drift waves using fluid theoretical approach in magnetized plasmaA novel third order nonlinear evolution equation governing the dynamics of high frequency electrostatic drift waves has been derived in the framework of a plasma fluid model in an inhomogeneous…Siba Prasad Acharya, M. S. Janaki·Feb 17, 2022SaveLearn
Intense high-harmonic optical vortices generated from a micro-plasma-waveguide irradiated by a circularly polarized laser pulseA scheme for generating intense high-harmonic optical vortices is proposed. It relies on spin-orbit interaction of light when a relativistically-strong circularly polarized laser pulse irradiates a…Ke Hu, Longqing Yi·Feb 17, 2022SaveLearn
Attaining a strong-field QED signal at laser-electron colliders with optimized focusingColliding bunches of high-energy electrons with intense laser pulses provides a basis for studying strong-field QED processes enabled by high values of quantum non-linearity parameter χ.…Christoffer Olofsson, Arkady Gonoskov·Feb 16, 2022SaveLearn
Fast inverse transform sampling of non-Gaussian distribution functions in space plasmasNon-Gaussian distributions are commonly observed in collisionless space plasmas. Generating samples from non-Gaussian distributions is critical for the initialization of particle-in-cell simulations…Xin An, Anton Artemyev, Vassilis Angelopoulos et al.·Feb 16, 2022SaveLearn
Coupling of acoustic and drift modes, harmonic modons in astrophysical dusty plasma and a new mode in the Comet HalleyThis manuscript, presents a theoretical study of the linear and nonlinear characteristics of acoustic and drift waves in a bounded inhomogenious dusty plasma which has potential applications in space…Zahida Ehsan, Nazia Batool, Volodymyr M. Lashkin·Feb 16, 2022SaveLearn
Electron acceleration by laser plasma wedge interactionA new electron acceleration mechanism is identified that develops when a relativistically intense laser irradiates the wedge of an over-dense plasma. This induces a diffracted electromagnetic wave…S. Marini, P. S. Kleij, M. Grech et al.·Feb 16, 2022SaveLearn
The Optimal Beam-loading in Two-bunch Nonlinear Plasma Wakefield AcceleratorsDue to the highly nonlinear nature of the beam-loading, it is at present not possible to analytically determine the beam parameters needed in a two-bunch plasma wakefield accelerator for maintaining…Xiaoning Wang, Jie Gao, Qianqian Su et al.·Feb 15, 2022SaveLearn
High-flux neutron generation by laser-accelerated ions from single- and double-layer targetsContemporary ultraintense, short-pulse laser systems provide extremely compact setups for the production of high-flux neutron beams, such as those required for nondestructive probing of dense matter,…Vojtěch Horný, Sophia N. Chen, Xavier Davoine et al.·Feb 14, 2022SaveLearn
Formation mechanism of the rotating spoke in partially magnetized plasmasRotating spokes commonly occur in partially magnetized plasmas devices. In this paper, the driving mechanism behind the formation of an m=1 rotating spoke mode in a magnetically enhanced hollow…Liang Xu, Denis Eremin, Andrei Smolyakov et al.·Feb 14, 2022SaveLearn
Underdense relativistically thermal plasma produced by magnetically assisted direct laser accelerationWe introduce the first approach to volumetrically generate relativistically thermal plasma at gas-jet--accessible density. Using fully kinetic simulations and theory, we demonstrate that two stages…K. Weichman, J. P. Palastro, A. P. L. Robinson et al.·Feb 14, 2022SaveLearn