Neural network classification of eigenmodes in the magnetohydrodynamic spectroscopy code LegolasTo predict the immediate evolution of a plasma system, one needs to identify the nature of the dominant instability. In this work, a neural network is employed to address a non-binary classification…Jordi De Jonghe, Michał D. Kuczyński·Dec 13, 2023SaveLearn
An H Surface Plasma Source for the ESS Storage RingFor H- charge exchange (stripping) injection to European Spallation Source (ESS) storage ring it is necessary to have H- ion source with a current of ~90 mA, pulses duration 3 ms, and repetition of…Vadim Dudnikov·Dec 13, 2023SaveLearn
A transport-like approach to turbulence-mediated magnetic reconnectionA transport-like framework for the study of magnetic reconnection mediated by self-driven turbulence is proposed, based on timescale separation between the reconnection time and the characteristic…Nuno F. Loureiro·Dec 12, 2023SaveLearn
Detailed and simplified plasma models in combined-cycle magnetohydrodynamic power systemsMagnetohydrodynamics (MHD) is a subject concerned with the dynamics of electrically conducting fluids (plasma) and can be applied in electric power generation. As a unique technology for producing…Osama A. Marzouk·Dec 11, 2023SaveLearn
Statistics of Turbulence in the Solar Wind. I. What is the Reynolds Number of the Solar Wind?The Reynolds number, Re, is an important quantity for describing a turbulent flow. It tells us about the bandwidth over which energy can cascade from large scales to smaller ones, prior to the onset…Daniel Wrench, Tulasi N. Parashar, Sean Oughton et al.·Dec 11, 2023SaveLearn
On parallel laser beam merger in plasmasSelf-focusing instability is a well-known phenomenon of nonlinear optics, which is of great importance in the field of laser-plasma interactions. Self-focusing instability leads to beam focusing and,…K. V. Lezhnin, Kenan Qu, N. J. Fisch et al.·Dec 11, 2023SaveLearn
Charged particle dynamics in an elliptically polarized electromagnetic wave and a uniform axial magnetic fieldAn analytical study of the charged particle dynamics in the presence of an elliptically polarized electromagnetic wave and a uniform axial magnetic field, is presented. It is found that for $gω0/…Shivam Kumar Mishra, Sarveshwar Sharma, Sudip Sengupta·Dec 11, 2023SaveLearn
Electron energy gain due to a laser frequency modulation experienced by electron during betatron motionDirect laser acceleration of electrons is an important energy deposition mechanism for laser-irradiated plasmas that is particularly effective at relativistic laser intensities in the presence of…Alexey Arefiev, I-Lin Yeh, Louise Willingale·Dec 11, 2023SaveLearn
Turbulent multicomponent magnetopause: Analytical description and kinetic simulation of complex distributed current sheetsWe carry out particle-in-cell simulations of complex current sheets of the family of analytically found Vlasov--Maxwell equilibria that model a collisionless magnetopause and allow for arbitrary…Anton Nechaev, Mikhail Garasev, Vladimir Kocharovsky·Dec 10, 2023SaveLearn
Revealing the Nonlinear Amplification of Radiation Reaction Effects via Vortex RadiationRadiation reaction (RR), the back-action of emitted radiation on an accelerated charge, dominates the dynamics of ultrarelativistic electrons in an intense electromagnetic field. By solving the…Yi-Ju Kang, Yu-Meng Gao, Jia-Qi Wang et al.·Dec 9, 2023SaveLearn
Electron Weibel instability and~quasi-magnetostatic structures in~an~expanding collisionless plasmaWe outline transient quasi-magnetostatic phenomena associated with Weibel-type instabilities, mainly, the formation and decay of the current sheets and filaments. We consider a collisionless…Vladimir Kocharovsky, Anton Nechaev, Mikhail Garasev·Dec 9, 2023SaveLearn
Breakdown modes of capacitively coupled plasma II: unsustainable dischargesIn this work, the one-dimensional implicit particle-in-cell/Monte-Carlo collision code (PIC/MCC) is used to study the discharge of a capacitively coupled plasma (CCP) under extremely low pressure…Hao Wu, Ran An, Dong Zhong et al.·Dec 9, 2023SaveLearn
Kinetic-Ballooning-Bifurcation in Tokamak Pedestals Across Shaping and Aspect-RatioWe use a new gyrokinetic threshold model to predict a bifurcation in tokamak pedestal width-height scalings that depends strongly on plasma shaping and aspect-ratio. The bifurcation arises from the…J. F. Parisi, A. O. Nelson, R. Gaur et al.·Dec 8, 2023SaveLearn
Laboratory realization of relativistic pair-plasma beamsRelativistic electron-positron plasmas are ubiquitous in extreme astrophysical environments such as black holes and neutron star magnetospheres, where accretion-powered jets and pulsar winds are…C. D. Arrowsmith, P. Simon, P. Bilbao et al.·Dec 8, 2023SaveLearn
Energy dissipation in astrophysical simulations: results of the Orszag-Tang test problemThe magnetic field through the magnetic reconnection process affects the dynamics and structure of astrophysical systems. Numerical simulations are the tools to study the evolution of these systems.…Fatemeh Kayanikhoo, Miljenko Cemeljic, Maciek Wielgus et al.·Dec 7, 2023SaveLearn
Pulsed voltage cold atmospheric plasma jet and gold nanoparticles enhance cytotoxic anticancer effectEfficient and biologically safe mode of cold atmospheric plasma jet (CAPJ) is crucial for the development of CAPJ-based anticancer therapy. In the experiment and numerical simulations, by changing…I. Schweigert, M. Biryukov, A. Polyakova et al.·Dec 7, 2023SaveLearn
Radiation Reaction Kinetics and Collective QED SignaturesObserving collective effects originating from the interplay between quantum electrodynamics and plasma physics might be achieved in upcoming experiments. In particular, the generation of…Alec Griffith, Kenan Qu, Nathaniel J. Fisch·Dec 7, 2023SaveLearn
Simulations of Non-Integer Upconversion in Resonant Six-Wave ScatteringResonant upconversion through a sixth order relativistic nonlinearity resulting in a unique resonance was recently proposed [V. M. Malkin and N. J. Fisch, Physical Review E 108, 045208 (2023)]. The…Alec Griffith, Kenan Qu, Nathaniel J. Fisch·Dec 7, 2023SaveLearn
On the role of numerical diffusivity in MHD simulations of global accretion disc dynamosObservations, mainly of outbursts in dwarf novae, imply that the anomalous viscosity in highly ionized accretion discs is magnetic in origin, and requires that the plasma β 1. Until now most…C. J. Nixon, C. C. T. Pringle, J. E. Pringle·Dec 7, 2023SaveLearn
Different effects of suprathermal electrons and ions on drift instabilities in non-uniform plasmasThe paper studies the drift instability in Kappa-distributed inhomogeneous plasmas. Weak inhomogeneity and local approximation are assumed. The linear dispersion relation is expressed in a novel…Ran Guo·Dec 7, 2023SaveLearn
Analytical solutions for quantum radiation reaction in high-intensity lasersWhile the Landau-Lifshitz equation, which describes classical radiation reaction, can be solved exactly and analytically for a charged particle accelerated by a plane electromagnetic wave, no such…T. G. Blackburn·Dec 6, 2023SaveLearn
Modelling of shattered pellet injection experiments on the ASDEX Upgrade tokamakA disruption mitigation system (DMS) is necessary for fusion-grade tokamaks like ITER in order to ensure the preservation of machine components throughout their designated operational lifespan. To…Anshkumar Himanshu Patel·Dec 6, 2023SaveLearn
On the generation of attosecond gigawatt soft X-ray pulses through coherent Thomson backscatteringCollision between relativistic electron sheets and counter-propagating laser pulses is recognized as a promising way to produce intense attosecond X-rays through coherent Thomson backscattering…Qianyi Ma, Jiaxin Liu, Zhuo Pan et al.·Dec 6, 2023SaveLearn
A 3D kinetic Monte Carlo study of streamer discharges in CO2We theoretically study the inception and propagation of positive and negative streamers in CO2. Our study is done in 3D, using a newly formulated kinetic Monte Carlo discharge model where the…Robert Marskar·Dec 5, 2023SaveLearn
Breakdown modes of capacitively coupled plasma I: transitions from glow discharge to multipactorIn this work, a one-dimensional direct implicit particle-in-cell/Monte Carlo collision (PIC/MCC) code is used to study the capacitive discharge driven under 60 MHz rf power in the background gas of…Hao Wu, Ran An, Dong Zhong et al.·Dec 5, 2023SaveLearn