Neutrino magnetohydrodynamic instabilities in presence of two-flavor oscillationsThe influence of neutrino flavor oscillations on the propagation of magnetohydrodynamic (MHD) waves and instabilities is studied in neutrino-beam driven magnetoplasmas. Using the neutrino MHD model,…D. Chatterjee, A. P. Misra, S. Ghosh·Oct 18, 2022SaveLearn
Minimizing Separatrix Crossings through IsoprominenceA simple property of magnetic fields that minimizes bouncing to passing type transitions of guiding center orbits is defined and discussed. This property, called isoprominence, is explored through…Joshua W. Burby, Nathan Duignan, James D. Meiss·Oct 18, 2022SaveLearn
A quasi-local inhomogeneous dielectric tensor for arbitrary distribution functionsTreatments of plasma waves usually assume homogeneity, but the parallel gradients ubiquitous in plasmas can modify wave propagation and absorption. We derive a quasilocal inhomogeneous correction to…S. J. Frank, J. C. Wright, P. T. Bonoli·Oct 18, 2022SaveLearn
Magnetohydrodynamic instabilities in a self-gravitating rotating cosmic plasmaThe generation of magnetohydrodynamic (MHD) waves and their instabilities are studied in galactic gaseous rotating plasmas with the effects of the magnetic field, the self gravity, the…Jyoti Turi, A. P. Misra·Oct 18, 2022SaveLearn
Stability of electromagnetic solitons]Electromagnetic solitons and their stability in relativistic degenerate dense plasmas with two electron speciesThe evolution of electromagnetic (EM) solitons due to nonlinear coupling of circularly polarized intense laser pulses with low-frequency electron-acoustic perturbations is studied in relativistic…Sima Roy, Amar P. Misra·Oct 18, 2022SaveLearn
A computational study on the energy efficiency of species production by single-pulse streamers in airWe study the energy efficiency of species production by streamer discharges with a single voltage pulse in atmospheric dry air, using a 2D axisymmetric fluid model. Sixty different positive streamers…Baohong Guo, Jannis Teunissen·Oct 14, 2022SaveLearn
Improving the Feasibility of Economical Proton-Boron 11 Fusion via Alpha Channeling with a Hybrid Fast and Thermal Proton SchemeThe proton-Boron 11 (p-B11) fusion reaction is much harder to harness for commercial power than the easiest fusion reaction, namely the deuterium and tritium (DT) reaction. The p-B11 reaction…Ian E. Ochs, Elijah J. Kolmes, Mikhail E. Mlodik et al.·Oct 14, 2022SaveLearn
Study of vibrational kinetics of CO2 and CO in CO2-O2 plasmas under non-equilibrium conditionsThis work explores the effect of O2 addition on CO2 dissociation and on the vibrational kinetics of CO2 and CO under various non-equilibrium plasma conditions. A self-consistent model, previously…C. Fromentin, T. Silva, T. C. Dias et al.·Oct 14, 2022SaveLearn
Synchronization of Dust Acoustic Waves in a forced Korteweg-de Vries-Burgers modelThe synchronization of dust acoustic waves to an external periodic source is studied in the framework of a driven Korteweg-de Vries-Burgers equation that takes into account the appropriate nonlinear…Ajaz Mir, Sanat Tiwari, Abhijit Sen et al.·Oct 14, 2022SaveLearn
A Collisional-Energy-Cascade Model for Nonthermal Velocity Distributions of Neutral Atoms in PlasmasNonthermal velocity distributions with much greater tails than the Maxwellian have been observed for radical atoms in plasmas for a long time. Historically, such velocity distributions have been…Keisuke Fujii·Oct 13, 2022SaveLearn
Electron Acceleration and Radiation Generation from Relativistic Laser-Plasma Interactions at High Repetition-RateThis dissertation explores the interaction between high-intensity lasers and plasmas to accelerate electrons and produce radiation via experimental and computational efforts. The laser pulses used in…Jinpu Lin·Oct 12, 2022SaveLearn
Super-Fermi Acceleration in Multiscale MHD ReconnectionWe investigate the Fermi acceleration of charged particles in 2D MHD anti-parallel plasmoid reconnection, finding a drastic enhancement in energization rate over a standard Fermi…Stephen Majeski, Hantao Ji·Oct 12, 2022SaveLearn
Investigation of Core Transport Barriers in DIII-D Discharges with off-axis Te Profile PeaksDIII-D discharges that transition to H-mode solely with off-axis electron cyclotron heating (ECH) often exhibit strong off-axis peaking of electron temperature profiles at the heating location.…Ruifeng Xie, Max E. Austin, Kenneth W. Gentle et al.·Oct 12, 2022SaveLearn
High brilliance γ-ray generation from the laser interaction in a carbon plasma channelThe generation of collimated, high brilliance γ-ray beams from a structured plasma channel target is studied by means of 2D PIC simulations. Simulation results reveal an optimum laser pulse pulse…Christian Heppe, Naveen Kumar·Oct 12, 2022SaveLearn
Physical correlations lead to kappa distributionsThe recently developed concept of "entropic defect" is important for understanding the foundations of thermodynamics in space plasma physics, and more generally, for systems with physical…George Livadiotis, David J. McComas·Oct 11, 2022SaveLearn
Moment-Based Approach to the Flux-Tube linear Gyrokinetic ModelThis work reports on the development and numerical implementation of the linear electromagnetic gyrokinetic (GK) model in a tokamak flux-tube geometry using a moment approach based on the expansion…B. J. Frei, A. C. D. Hoffmann, P. Ricci et al.·Oct 11, 2022SaveLearn
Instabilities and turbulence in stellarators from the perspective of global codesIn this work, a comparison of the global gyrokinetic codes EUTERPE and GENE-3D in stellarator configurations of LHD and W7-X is carried out. In linear simulations with adiabatic electrons, excellent…E. Sánchez, A. Bañón Navarro, F. Wilms et al.·Oct 11, 2022SaveLearn
Cross-Filament Stochastic Acceleration of Electrons in Kilojoule Picosecond Laser Interactions with Near Critical Density PlasmasUnderstanding the interaction of kilojoule, picosecond laser pulse with long-scale length preplasma or homogeneous near critical density (NCD) plasma is crucial for guiding experiments at national…X. F. Shen, A. Pukhov, O. N. Rosmej et al.·Oct 11, 2022SaveLearn
Shear Viscosity in Two-Dimensional Dipole SystemsThe results of modeling shear flows in classical two-dimensional dipole systems are presented. We used the method of non-equilibrium molecular dynamics to calculate the viscosity at various shear…N. E. Djienbekov, A. M. Bekbussyn, N. Kh. Bastykova et al.·Oct 11, 2022SaveLearn
Kinetic Simulations Verifying Reconnection Rates Measured in the Laboratory, Spanning the Ion-Coupled to Near Electron-Only RegimesThe rate of reconnection characterizes how quickly flux and mass can move into and out of the reconnection region. In the Terrestrial Reconnection EXperiment (TREX), the rate at which antiparallel…Samuel Greess, Jan Egedal, Adam Stanier et al.·Oct 10, 2022SaveLearn
Decreasing ultrafast X-ray pulse durations with saturable absorption and resonant transitionsSaturable absorption is a nonlinear effect where a material's ability to absorb light is frustrated due to a high influx of photons and the creation of electron vacancies. Experimentally induced…Sebastian Cardoch, Fabian Trost, Howard A. Scott et al.·Oct 10, 2022SaveLearn
Full f and δf gyrokinetic particle simulations of Alfvén waves and energetic particle physicsIn this work, we focus on the development of the particle-in-cell scheme and the application to the studies of Alfvén waves and energetic particle physics in tokamak plasmas. The δf and full f…Zhixin Lu, Guo Meng, Roman Hatzky et al.·Oct 9, 2022SaveLearn
Notes on a 1-dimensional electrostatic plasma modelA starting point for deriving the Vlasov equation is the BBGKY hierarchy that describes the dynamics of coupled marginal distribution functions. With a large value of the plasma parameter one can…F. Pegoraro, P. J. Morrison·Oct 9, 2022SaveLearn
Direct stellarator coil optimization for nested magnetic surfaces with precise quasi-symmetryWe present a robust optimization algorithm for the design of electromagnetic coils that generate vacuum magnetic fields with nested flux surfaces and precise quasi-symmetry. The method is based on a…Andrew Giuliani, Florian Wechsung, Antoine Cerfon et al.·Oct 6, 2022SaveLearn
Plasma zone plate for high-power lasers driven by a Laguerre-Gaussian beamPlasma-based optics has emerged as an attractive alternative to traditional solid-state optics for high-power laser manipulation due to its higher damage threshold. In this work, we propose a plasma…Lukai Wang, Wei Liu, Qing Jia et al.·Oct 6, 2022SaveLearn