Giant overreflection of magnetohydrodynamic waves from inhomogeneous plasmas with nonuniform shear flowsWe study theoretically mode conversion and resonant overreflection of magnetohydrodynamic waves in an inhomogeneous plane-stratified plasma in the presence of a nonuniform shear flow, using precise…Seulong Kim, Kihong Kim·Sep 15, 2022SaveLearn
Influence of the rotational sense of two colliding laser beams on the radiation of an ultrarelativistic electronWith analytical treatment, the classical dynamics of an ultrarelativistic electron in two counter-propagating circularly polarized strong laser beams with either co-rotating or counter-rotating…L. Aliani, Q. Z. Lv·Sep 15, 2022SaveLearn
GX: a GPU-native gyrokinetic turbulence code for tokamak and stellarator designGX is a code for solving the nonlinear gyrokinetic system for low-frequency turbulence in magnetized plasmas, particularly tokamaks and stellarators. In GX, our primary motivation and target is a…N. R. Mandell, W. Dorland, I. Abel et al.·Sep 14, 2022SaveLearn
Judgment of paradigms for magnetic reconnection in coronal loopsThe traditional paradigm for magnetic field lines changing connections ignores magnetic field line chaos and requires an extremely large current density, jmax Rm, flowing in thin sheets…Allen H Boozer·Sep 14, 2022SaveLearn
Relativistic Topological Waves from Cherenkov and Doppler Resonances in Self-Magnetized Laser PlasmasStrong magnetic fields at plasma-plasma interfaces can be naturally produced in laser-plasma interactions. Using theoretical analysis and fully three-dimensional particle-in-cell simulations, we…Xiaofei Shen, Lars Reichwein, Alexander Pukhov·Sep 14, 2022SaveLearn
Landau distribution of ionization losses: history, importance, extensionsThe ionization losses -- the losses of energy by fast charged particles traveling through a matter -- have been under study for more than 100 years. The theoretical explanation of this process spans…Eugene Bulyak, Nikolay Shul'ga·Sep 14, 2022SaveLearn
High-order coupling of shear and sonic continua in JET plasmasA recent model coupling the shear-Alfvén and acoustic continua, which depends strongly on the equilibrium shaping and on elongation in particular, is employed to explain the properties of Alfvénic…Paulo Rodrigues, Duarte Borba, Francesca Cella et al.·Sep 13, 2022SaveLearn
Auto-correlations of Microscopic Density Fluctuations for Yukawa Fluids in the Generalized Hydrodynamics FrameworkThe present work develops a theoretical procedure for obtaining transport coefficients of Yukawa systems from density fluctuations. The dynamics of Yukawa systems are described in the framework of…Ankit Dhaka, PV Subhash, P. Bandyopadhyay et al.·Sep 13, 2022SaveLearn
Observation of Turbulent Magnetohydrodynamic Cascade in the Jovian MagnetosheathWe present the first estimation of the energy cascade rate in Jupiter's magnetosheath (MS). We use in-situ observations from the Jovian Auroral Distributions Experiment (JADE) and the…N. Andrés, R. Bandyopadhyay, D. J. McComas et al.·Sep 12, 2022SaveLearn
Self-organization phenomena in cold atmospheric pressure plasma slit jetThe RF plasma slit jet, which produces 150 mm wide streaming plasma outside the jet body, exhibits exciting self-organization phenomena that resemble the self-organized patterns of dielectric barrier…Kateřina Polášková, David Nečas, Lukáš Dostál et al.·Sep 12, 2022SaveLearn
On the relationship between the multi-region relaxed variational principle and resistive inner layer theoryWe show that the variational energy principle of multi-region relaxed magnetohydrodynamic (MRxMHD) model can be used to predict finite-pressure linear tearing instabilities. In this model, the plasma…A. Kumar, J. Loizu, M. J. Hole et al.·Sep 12, 2022SaveLearn
Alpha-particle generation from H-11B fusion initiated by laser-accelerated boron ionsHere we report the generation of MeV alpha-particles from H-11B fusion initiated by laser-accelerated boron ions. Boron ions with maximum energy of 6MeV and fluence of 109/MeV/sr@5MeV were generated…Defeng Kong, Shirui Xu, Yinren Shou et al.·Sep 12, 2022SaveLearn
High-energy-density plasma in femtosecond-laser-irradiated nanowire array targets for nuclear reactionsIn this work, the high-energy-density plasmas (HEDP) evolved from joule-class-femtosecond-laser-irradiated nanowire array (NWA) targets are numerically and experimentally studied. The…Defeng Kong, Guoqiang Zhang, Yinren Shou et al.·Sep 12, 2022SaveLearn
Control of electron beam current, charge and energy spread using density downramp injection in laser wakefield acceleratorsDensity dowmramp injection has been demonstrated to be an elegant and efficient approach for generating high quality electron beams in laser wakefield accelerators. Yet, the charge of the produced…Celine Hue, Yang Wan, Eitan Y. Levine et al.·Sep 11, 2022SaveLearn
The enhanced soliton propagation and energy transfer in the coupled drift wave and energetic-particle-induced geodesic acoustic mode systemThe evolution of the coupled drift wave (DW) and energetic-particle-induced geodesic acoustic mode (EGAM) nonlinear system is investigated using the fully nonlinear coupled DW-EGAM two-field…Ningfei Chen, Guangyu Wei, Zhiyong Qiu·Sep 11, 2022SaveLearn
Mukautuva hilantarkennus Vlasiator-plasmasimulaattorissaSimulating space plasma in a global scale is computationally demanding. Modeling different regions with different resolution can save computational resources without compromising too much on…Leo Kotipalo·Sep 10, 2022SaveLearn
Data-driven, multi-moment fluid modeling of Landau dampingDeriving governing equations of complex physical systems based on first principles can be quite challenging when there are certain unknown terms and hidden physical mechanisms in the systems. In this…Wenjie Cheng, Haiyang Fu, Liang Wang et al.·Sep 10, 2022SaveLearn
Prevention of core particle depletion in stellarators by turbulenceIn reactor-relevant plasmas, neoclassical transport drives an outward particle flux in the core of large stellarators and predicts strongly hollow density profiles. However, this theoretical…H. Thienpondt, J. M. García-Regaña, I. Calvo et al.·Sep 9, 2022SaveLearn
The Problem of Marginality in Model Reductions of TurbulenceReduced quasilinear (QL) and nonlinear (gradient-driven) models with scale separations, commonly used to interpret experiments and to forecast turbulent transport levels in magnetised plasmas are…C. Gillot, G. Dif-Pradalier, Y. Sarazin et al.·Sep 9, 2022SaveLearn
Group velocity of obliquely propagating Alfvén waves in a magnetized dusty plasmaIn this work we investigate the characteristics of the group velocity of obliquely propagating Alfvén waves in a dusty plasma typical of a stellar wind. The dispersion relation is derived with the…L. B. De Toni, R. Gaelzer, L. F. Ziebell·Sep 8, 2022SaveLearn
A performance portable, fully implicit Landau collision operator with batched linear solversModern accelerators use hierarchical parallel programming models that enable massive multithreading within a processing element (PE), with multiple PEs per device driven by traditional processes.…Mark F. Adams, Peng Wang, Jacob Merson et al.·Sep 7, 2022SaveLearn
Power exhaust and core-divertor compatibility of the baffled snowflake divertor in TCVA baffled Snowflake Minus Low-Field Side (SF-LFS) is geometrically-optimised in TCV, increasing divertor neutral pressure, to evaluate the roles of divertor closure (comparing with an unbaffled…Sophie Gorno, Claudia Colandrea, Olivier Février et al.·Sep 7, 2022SaveLearn
Shaping the edge radial electric field to create shearless transport barriers in tokamaksIn tokamak-confined plasmas, particle transport can be reduced by modifying the radial electric field. In this paper, we investigate the influence of both a well-like and a hill-like shaped radial…L. A. Osorio-Quiroga, M. Roberto, I. L. Caldas et al.·Sep 6, 2022SaveLearn
Observation of electromagnetic filamentary structures produced by the Weibel instability in laser-driven plasmasWe present experimental observations of electron-scale structures in an expanding high-energy-density (HED) plasma generated with a modest intensity 2 × 1014 W/cm2, 1 ns…G. D. Sutcliffe, P. J. Adrian, J. A. Pearcy et al.·Sep 6, 2022SaveLearn
Simulations Campaign of the Turbulent Diffusion at Tokamaks EdgesThe understanding of cross-field transport is crucial in order to optimize the properties of magnetic confinement in modern fusion devices. In this work, a two-dimensional, simplified model is used…L. Scarivaglione, F. Valentini, S. Servidio·Sep 6, 2022SaveLearn