Phase transition of three-dimensional finite-sized charged dust clusters in a plasma environmentThe dynamics of a harmonically trapped three-dimensional Yukawa ball of charged dust particles immersed in plasma is investigated as function of external magnetic field and Coulomb coupling parameter…Hirakjyoti Sarma, Ritupan Sarmah, Nilakshi Das·May 29, 2023SaveLearn
Two dimensional effects of laser interacting with magnetized plasmaRecent advancements in low-frequency short-pulse CO2 lasers and the production of strong magnetic fields have made experimental studies on laser interactions with magnetized plasma a near-future…Laxman Prasad Goswami, Amita Das, Anuj Vijay·May 27, 2023SaveLearn
Reduction or enhancement of stellarator turbulence by impuritiesA systematic study of the impact of impurities on the turbulent heat fluxes is presented for the stellarator Wendelstein 7-X (W7-X) and, for comparison, the Large Helical Device and ITER. By means of…J. M. García-Regaña, I. Calvo, F. I. Parra et al.·May 26, 2023SaveLearn
Nonlinear saturation of resistive tearing modes in a cylindrical tokamak with and without solving the dynamicsWe show that the saturation of resistive tearing modes in a cylindrical tokamak, as well as the corresponding island width, can be directly calculated with an MHD equilibrium code without solving the…J. Loizu, D. Bonfiglio·May 26, 2023SaveLearn
Quantum Description of Free Electron Laser Radiation and Nonlinear Amplitude EquationsA relativistic quantum mechanical model to describe the quantum FEL dynamics has been developed. Neglecting the spin of electrons in the impacting beam, this model is based on the Klein-Gordon…Stephan I. Tzenov, Zhichu Chen·May 26, 2023SaveLearn
Magnetized dusty plasma: On issues of its complexity and magnetization of charged dust particlesIt is possible to excite various linear and non-linear low-frequency modes in dusty plasma which is an admixture of electrons, ions, gas atoms, and negatively charged solid particles. The…Mangilal Choudhary·May 26, 2023SaveLearn
Demonstration of tunability of HOFI waveguides via start-to-end simulationsIn recent years, hydrodynamic optical-field-ionized (HOFI) channels have emerged as a promising technique to create laser waveguides suitable for guiding tightly-focused laser pulses in a plasma, as…S. M. Mewes, G. J. Boyle, A. Ferran Pousa et al.·May 26, 2023SaveLearn
Hamiltonian Structure and Nonlinear Stability of Steady Solutions of the Generalized Hasegawa-Mima Equation for Drift Wave Turbulence in Curved Magnetic FieldsThe Generalized Hasegawa-Mima (GHM) equation, which generalizes the standard Hasegawa-Mima (HM) equation, is a nonlinear equation describing the evolution of drift wave turbulence in curved magnetic…Naoki Sato, Michio Yamada·May 26, 2023SaveLearn
Guiding Center Derivation of the Generalized Hasegawa-Mima Equation for Drift Wave Turbulence in Curved Magnetic FieldsRecently, a generalized Hasegawa-Mima (gHM) equation describing drift wave turbulence in curved magnetic fields has been derived in [N. Sato and M. Yamada, J. Plasma Phys. (2022), vol. 88, 905880319]…Naoki Sato, Michio Yamada·May 26, 2023SaveLearn
A relativistic two-stream instability in an extremely low-density plasmaA linear analysis based on two-fluid equations in the approximation of a cold plasma, wherein the plasma temperature is assumed to be zero, demonstrates that a two-stream instability occurs in all…Shinji Koide, Masaaki Takahashi, Rohta Takahashi·May 26, 2023SaveLearn
The Nonlinear Evolution of Whistler-Mode Chorus Revisited: Modulation Instability as the Source of TonesWe review the modulation stability of parallel propagating/field aligned Whistler Mode Chorus waves propagating in a warm plasma from a formal perspective with a focus on wave-particle interactions.…Daniel Ratliff, Oliver Allanson·May 25, 2023SaveLearn
Rotating spokes, potential hump and modulated ionization in radio frequency magnetron dischargesIn this work, the rotating spoke mode in the radio frequency (RF) magnetron discharge, which features the potential hump and the RF-modulated ionization, is observed and analyzed by means of the two…Liang Xu, Haoming Sun, Denis Eremin et al.·May 25, 2023SaveLearn
X-ray Thomson scattering absolute intensity from the f-sum rule in the imaginary-time domainWe present a formally exact and simulation-free approach for the normalization of X-ray Thomson scattering (XRTS) spectra based on the f-sum rule of the imaginary-time correlation function (ITCF).…Tobias Dornheim, Tilo Döppner, Andrew D. Baczewski et al.·May 24, 2023SaveLearn
Study of Synchronous RF Pulsing in Dual Frequency Capacitively Coupled PlasmaLow-pressure multi-frequency capacitively coupled plasmas are used for numerous etch and deposition applications in the semiconductor industry. Pulsing of the radio-frequency (RF) sources enables…Abhishek Verma, Shahid Rauf, Kallol Bera et al.·May 24, 2023SaveLearn
Hybrid Optimization of Laser-Driven Fusion Targets and Laser ProfilesQuasi-isentropic compression is an effective method to achieve high-density and high-temperature implosion in laser-driven inertial confinement fusion (ICF). However, it requires precise matching…Z. Li, Z. Q. Zhao, X. H. Yang et al.·May 23, 2023SaveLearn
Effect of electron-beam energy chirp on signatures of radiation reaction in laser-based experimentsCurrent experiments investigating radiation reaction employ high energy electron beams together with tightly focused laser pulses in order to reach the quantum regime, as expressed through the…J. Magnusson, T. G. Blackburn, E. Gerstmayr et al.·May 23, 2023SaveLearn
The Electric Fields and "Lightning Jets" of the Sun and Solar WindA model of electric energization of the Solar Wind and Corona is developed, including electro-magnetic (EM) particle effects precluded by traditional magneto-hydro (MHD) assumptions. Using standard…Charles F. Driscoll·May 22, 2023SaveLearn
Robust avoidance of edge-localized modes alongside gradient formation in the negative triangularity tokamak edgeIn a series of high performance diverted discharges on DIII-D, we demonstrate that strong negative triangularity (NT) shaping robustly suppresses all edge-localized mode (ELM) activity over a wide…A. O. Nelson, L. Schmitz, C. Paz-Soldan et al.·May 22, 2023SaveLearn
Accelerated Bayesian inference of plasma profiles with self-consistent MHD equilibria at W7-X via neural networksHigh- β operations require a fast and robust inference of plasma parameters with a self-consistent MHD equilibrium. Precalculated MHD equilibria are usually employed at W7-X due to…Andrea Merlo, Andrea Pavone, Daniel Böckenhoff et al.·May 22, 2023SaveLearn
Fast equilibrium reconstruction by deep learning on EAST tokamakA deep neural network is developed and trained on magnetic measurements (input) and EFIT poloidal magnetic flux (output) on the EAST tokamak. In optimizing the network architecture, we use automatic…Jingjing Lu, Youjun Hu, Nong Xiang et al.·May 20, 2023SaveLearn
Laser harmonic generation with tuneable orbital angular momentum using a structured plasma targetIn previous studies of spin-to-orbital angular momentum (AM) conversion in laser high harmonic generation (HHG) using a plasma target, one unit of spin AM is always converted into precisely one unit…R. M. G. M. Trines, H. Schmitz, M. King et al.·May 19, 2023SaveLearn
Classification of Orbits in Poincaré Maps using Machine LearningPoincaré plots, also called Poincaré maps, are used by plasma physicists to understand the behavior of magnetically confined plasma in numerical simulations of a tokamak. These plots are created by…Chandrika Kamath·May 18, 2023SaveLearn
Enhanced proton acceleration from near-critical density targets employing intense lasers with mixed polarizationWe demonstrate a scheme for enhanced proton acceleration from near-critical-density targets by splitting a laser pulse into a linearly and a circularly polarized laser pulse. The combination of two…D N Gupta, Saurabh Kumar, S Kar·May 18, 2023SaveLearn
Reconnection in a PinchA recently published, new analysis of current sheets updated the classic Harris 1D static solution by considering multiple classes of charged particle trajectories in a generalized dynamic current…Thomas E. Moore, James L. Burch, Deirdre E. Wendel·May 18, 2023SaveLearn
Analysis of ion-acoustic rogue wave in complex magneto-plasmasI considered a four-component magnetized plasma medium consisting of opposite polarity ions and super-thermal distributed positrons and electrons to investigate the stable/unstable frequency regimes…A. Parvez·May 18, 2023SaveLearn