Non-local, diamagnetic electromagnetic effects in magnetically insulated transmission linesWe identify the time-dependent physics responsible for the critical reduction of current losses in magnetically insulated transmission lines (MITLs) due to uninsulated space charge limited (SCL)…E. G. Evstatiev, M. H. Hess, N. D. Hamlin et al.·Aug 22, 2024SaveLearn
Cosmic Alternator for the Onset of Large-Scale Magnetic FieldsMagnetic field configurations extending over macroscopic scale distances are shown to be generated in rarefied collisionless plasmas when non-thermal and spatially inhomogeneous electron…B. Coppi, B. Basu·Aug 22, 2024SaveLearn
Magnetic Field Induced Ion Trapping Around Dust Particle in PlasmaThis paper investigates the binary collision between an ion and a charged dust particle in the plasma in the presence of a uniform magnetic field. The trajectories of ions are calculated using the…N. Kh. Bastykova, S. K. Kodanova, T. S. Ramazanov·Aug 22, 2024SaveLearn
Quantum Calculation for Two-Stream Instability and Advection Test of Vlasov-Maxwell Equations: Numerical Evaluation of Hamiltonian SimulationThe Vlasov-Maxwell equations provide kinetic simulations of collisionless plasmas, but numerically solving them on classical computers is often impractical. This is due to the computational resource…Hayato Higuchi, Juan W. Pedersen, Kiichiro Toyoizumi et al.·Aug 21, 2024SaveLearn
Proton Radiography Inversions with Source Extraction and Comparison to Mesh MethodsProton radiography is a central diagnostic technique for measuring electromagnetic (EM) fields in high-energy-density, laser-produced plasmas. In this technique, protons traverse the plasma where…J. Griff-McMahon, V. Valenzuela-Villaseca, S. Malko et al.·Aug 20, 2024SaveLearn
Effects of Mass Diffusion on Rayleigh-Taylor Instability Under A Large GravityRayleigh-Taylor instabilities (RTI) play an important role in the evolution of inertial confinement fusion (ICF) processes, while analytical prediction of the RTI growth rate often fails to reach an…Y. Guo, D. Wu, J. Zhang·Aug 20, 2024SaveLearn
Intensity and Dimensionality-Dependent Dynamics of Laser-Proton Acceleration in 1D, 2D, and 3D Particle-in-Cell SimulationsDue to the high computational cost of 3D particle-in-cell (PIC) simulations, lower-dimensional (2D or 1D) simulations are frequently used in their place. Our work shows that when modeling…Lillian A. Daneshmand, Madeline Aszalos, Scott Feister et al.·Aug 19, 2024SaveLearn
Modifications to Swisdak (2013)'s rejection sampling algorithm for a Maxwell-Jüttner distribution in particle simulationsModifications to Swisdak [Phys. Plasmas 20, 062110 (2013)]'s rejection sampling algorithm for drawing a Maxwell-Jüttner distribution in particle simulations are presented. Handy approximations…Seiji Zenitani·Aug 17, 2024SaveLearn
Automatic classification of magnetic field lines by persistent homologyA method for the automatic classification of the orbits of magnetic field lines into topologically distinct classes using the Vietoris-Rips persistent homology is presented. The input to the method…Nicholas Bohlsen, Vanessa Robins, Matthew Hole·Aug 17, 2024SaveLearn
Demarcating the classical and quantum approaches for the Coulomb logarithm in plasmasThe Coulomb logarithm often enters various plasma models and simulation methods for computing the transport and relaxation properties of plasmas. Traditionally, a classical pair collision picture was…S. K. Kodanova, T. S. Ramazanov, M. K. Issanova·Aug 17, 2024SaveLearn
Foreshock Ultra-Low Frequency Waves at Mars: Consequence on the Particle Acceleration Mechanisms at the Martian Bow ShockUsing Mars Atmosphere and Volatile EvolutioN Magnetometer observations, we report the first statistical study of ultra-low frequency (ULF) waves at the Martian foreshock. The analyzed foreshock ULF…Nahuel Andrés, Norberto Romanelli, Christian Mazelle et al.·Aug 16, 2024SaveLearn
Compact Efficient Polarizers for Relativistic Electron BeamsRelativistic spin-polarized electron beams are important for fundamental research and the industry, but their generation currently requires conventional accelerators or ultrastrong laser facilities,…Kun Xue, Yue Cao, Feng Wan et al.·Aug 16, 2024SaveLearn
Ambient air plasma acceleration in tightly-focused ultrashort infrared laser beamsRecent experimental and theoretical results have demonstrated the possibility of accelerating electrons in the MeV range by focusing tightly a few-cycle laser beam in ambient air. Using…Marianna Lytova, François Fillion-Gourdeau, Simon Vallières et al.·Aug 16, 2024SaveLearn
Plasma Rotation Induced by Biasing in Axially Symmetric MirrorsPhysics of the plasma rotation driven by biasing in linear traps is analyzed for two limiting cases. The first, relevant for traps with decent plasma parameters, considers the line-tying effects to…Alexei D. Beklemishev·Aug 16, 2024SaveLearn
Convergent trajectories of relativistic electrons interacting with lasers in plasma wavesThe dynamics of relativistic electrons interacting with a laser pulse in a plasma wave has been investigated theoretically and numerically based on the classical Landau-Lifshitz equation. There…Bin Liu, Bifeng Lei, Matt Zepf et al.·Aug 16, 2024SaveLearn
Coriolis Forces Modify Magnetostatic Ponderomotive PotentialsIt is possible to produce a ponderomotive effect in a plasma system without time-varying fields, if the plasma flows over spatial oscillations in the field. This can be achieved by superimposing a…E. J. Kolmes, N. J. Fisch·Aug 15, 2024SaveLearn
Producing entangled photon pairs and quantum squeezed states in plasmasPlasma is capable of mediating the conversion of two pump photons into two different photons through a relativistic four-wave mixing nonlinearity. Spontaneously created photon pairs are emitted at…Kenan Qu, Nathaniel J. Fisch·Aug 15, 2024SaveLearn
Global Stellarator Coil Optimization with Quadratic Constraints and ObjectivesMost present stellarator designs are produced by costly two-stage optimization: the first for an optimized equilibrium, and the second for a coil design reproducing its magnetic configuration. Few…Lanke Fu, Elizabeth J. Paul, Alan A. Kaptanoglu et al.·Aug 15, 2024SaveLearn
Sub-terahertz field emission transistors with selfpackaged microcavitiesThis paper presents the design of a vertical structure terahertz field emission transistor that utilizes a high-angle oblique deposition method to form a self-packaged vacuum microcavity. The…Yuxiang Huang, Ziqi Ke, Wenlong He·Aug 15, 2024SaveLearn
Inverse Rendering of Fusion Plasmas: Inferring Plasma Composition from Imaging SystemsIn this work, we develop a differentiable rendering pipeline for visualising plasma emission within tokamaks, and estimating the gradients of the emission and estimating other physical quantities.…Ekin Öztürk, Rob Akers, Stanislas Pamela et al.·Aug 14, 2024SaveLearn
On the singularity of Lie-transform perturbation approach to the guiding-center problemWe present a novel scheme of carrying out the Lie-transform perturbation for the guiding-center motion, with an aim at addressing directly the problem of singularity which exists intrinsically in the…W. H. Lin, J. Garcia, J. Q. Li·Aug 14, 2024SaveLearn
Plasma Equilibrium in Diamagnetic Trap with Neutral Beam InjectionThis paper presents a theoretical model of plasma equilibrium in the diamagnetic confinement mode in an axisymmetric mirror device with neutral beam injection. The hot ionic component is described…Mikhail S. Khristo, Alexei D. Beklemishev·Aug 13, 2024SaveLearn
Guiding-centre Lagrangian and quasi-symmetryA charged particle in a suitably strong magnetic field spirals along the field lines while slowly drifting transversely. This note provides a brief derivation of an effective Lagrangian formulation…Ted Jacobson·Aug 12, 2024SaveLearn
The Kinetic Analogue of the Pressure-Strain InteractionEnergy transport in weakly collisional plasma systems is often studied with fluid models and diagnostics. However, the applicability of fluid models is necessarily limited when collisions are weak or…Sarah A. Conley, James Juno, Jason M. TenBarge et al.·Aug 12, 2024SaveLearn
Non-Maxwellian Ion Distribution in the Equatorial and Auroral ElectrojetsStrong electric fields in the auroral and equatorial electrojets can distort the background ion distribution function away from Maxwellian. We developed a collisional plasma kinetic model using the…Rattanakorn Koontaweepunya, Yakov S. Dimant, Meers M. Oppenheim·Aug 12, 2024SaveLearn