Physical Review E (Plasma physics)

Author(s): A. Rososhek, E. S. Lavine, B. R. Kusse, W. M. Potter, and D. A. Hammer

In this paper, we present the first direct experimental evidence supported by numerical modeling of a turbulent plasma column formed during a gas-puff z-pinch implosion generated by the cobra current. Utilizing an imaging refractometer, we showed a significant decrease in spatial autocorrelation of …

[Phys. Rev. E 111, 045202] Published Tue Apr 08, 2025

Author(s): P. Manz, S. Knauer, C. Moon, N. Fahrenkamp, D. Di Matteo, and A. Fujisawa

The long-term development of the transitional regime of drift-wave turbulence is studied in a magnetized plasma column by means of the conditional-average technique. In the transitional regime, small changes in the magnetic-field strength as control parameter lead to large changes in the correlation…

[Phys. Rev. E 111, 045203] Published Tue Apr 08, 2025

Author(s): Anton Kananovich and J. Goree

The microscopic structure within a two-dimensional shock was studied using data from a dusty plasma experiment. A single layer of charged microparticles, levitated in a glow-discharge plasma, was perturbed by an electrically floating wire that was moved at a steady supersonic speed to excite a compr…

[Phys. Rev. E 111, 045201] Published Fri Apr 04, 2025

Author(s): Marianna Lytova, François Fillion-Gourdeau, Simon Vallières, Sylvain Fourmaux, Stéphane Payeur, Jeffrey Powell, François Légaré, and Steve MacLean

Recent 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 [S. Vallières et al., High dose-rate MeV electron beam from a tightly-focused femtosecond IR laser in ambient air, Laser…

[Phys. Rev. E 111, 035210] Published Thu Mar 27, 2025

Author(s): Zhen-Ke Dou, Chong Lv, Yousef I. Salamin, Nan Zhang, Feng Wan, Zhong-Feng Xu, and Jian-Xing Li

Compact spin-polarized positron accelerators play a major role in promoting significant positron application research, which typically require high acceleration gradients and polarization degrees, both of which, however, are still greatly challenging. Here, we put forward a spin-polarized positron a…

[Phys. Rev. E 111, 035209] Published Tue Mar 25, 2025

Author(s): Qingbo Luo, Xin Liang, Chengliang Lin, Xinlian Zhang, Jianpeng Liu, Cheng Gao, Yong Hou, and Jianmin Yuan

In hot dense plasma, the interaction between charged particles leads to the ionization potential depression (IPD), which further affects the physical properties of plasma, such as opacity and equation of state. The experiment of IPD of solid-density Al plasma has indicated that present theoretical m…

[Phys. Rev. E 111, 035208] Published Mon Mar 24, 2025

Author(s): X. X. Li, R. J. Cheng, Qing Wang, D. J. Liu, S. Y. Lv, Z. M. Huang, S. T. Zhang, Z. J. Chen, Z. Y. Xu, Qiang Wang, Z. J. Liu, L. H. Cao, C. Y. Zheng, and X. T. He

It is shown that the Landau damping of electron plasma waves (EPWs) is significantly enhanced in a transverse magnetic field with tens of teslas due to a strong modification of the electron velocity distribution function formed in the two-plasmon-decay (TPD) process. The Landau damping even in the r…

[Phys. Rev. E 111, 035207] Published Tue Mar 18, 2025

Author(s): Xiongdong Yu, Zhigang Yuan, Dedong Wang, Oliver Allanson, and Samuel Hunter

The dynamics of electrons in space plasmas, such as the earth’s radiation belts, are affected by the presence of wave turbulence, even when a resonance condition is not satisfied. The authors propose an expression to describe this resonance broadening effect, and find that it compares well with test particle simulation results. The study is applied to whistler-mode chorus waves in the radiation belt’s electrons, but can be easily extended to a wide range of systems.

#AdvancingField #TechnicalAdvancement

[Phys. Rev. E 111, L033201] Published Tue Mar 18, 2025

Author(s): Thomas Chuna and Michael S. Murillo

A considerable number of semiempirical and first-principles models have been created to describe the dynamic response of a collisionally damped charged-particle system. However, known challenges persist for established dynamic structure factors (DSFs), dielectric functions, and conductivities. For i…

[Phys. Rev. E 111, 035206] Published Mon Mar 17, 2025

Author(s): N. I. Petrov

Lightning is a source of x-ray and gamma radiation, one of the most powerful natural photon emissions on Earth. In the paper, based on recently published measurement data, we explain the experimental results and state that the observed high-energy radiation is generated by synchrotron and cyclotron …

[Phys. Rev. E 111, 035205] Published Fri Mar 14, 2025

Author(s): A. Rezvani, S. Miraboutalebi, L. Rajaei, and M. R. Sharifian

The existence and stability criteria of one-dimensional ion-acoustic solitons in a quantum cold, over-dense plasma are investigated through theoretical and numerical analyses. Within the quantum magnetohydrodynamic dominant regime, distinct governing equations are employed for spin-up and spin-down …

[Phys. Rev. E 111, 035204] Published Thu Mar 13, 2025

Author(s): Bertrand Martinez, Robert Babjak, and Marija Vranic

Positron creation and acceleration is one of the major challenges for constructing future lepton colliders. On the one hand, conventional technology can provide a solution, but at a prohibitive cost and scale. On the other hand, alternative, reduced-scale ideas for positron beam generation could bri…

[Phys. Rev. E 111, 035203] Published Mon Mar 10, 2025

Author(s): Zhaoye Wang, Nichen Yu, C. Reichhardt, C. J. O. Reichhardt, Ao Xu, Xin Chen, and Yan Feng

Depinning dynamics of a two-dimensional (2D) solid dusty plasma modulated by a one-dimensional (1D) vibrational periodic substrate are investigated using Langevin dynamical simulations. As the uniform driving force increases gradually, from the overall drift velocity varying with the driving force, …

[Phys. Rev. E 111, 035202] Published Fri Mar 07, 2025

Author(s): Louis Jose, James C. Welch, III, Timothy D. Tharp, and Scott D. Baalrud

Strongly magnetized plasmas, characterized by having a gyrofrequency larger than the plasma frequency (β=ωc/ωp≫1), are known to exhibit novel transport properties. Previous works studying pure electron plasmas have shown that strong magnetization significantly inhibits energy exchange between parall…

[Phys. Rev. E 111, 035201] Published Thu Mar 06, 2025

Author(s): William Trickey, T. J. B. Collins, I. V. Igumenshchev, V. N. Goncharov, and A. Shvydky

The dynamic-shell concept for inertial confinement fusion (ICF) uses an initially homogeneous target and a carefully shaped laser pulse to form a shell and implode it. The laser pulse consists of a series of pickets that drive shocks into the target. The first few shocks converge inwards and rebound…

[Phys. Rev. E 111, 025210] Published Fri Feb 28, 2025

Author(s): Yichen Fu, Justin R. Angus, Hong Qin, and Vasily I. Geyko

Coulomb collision is a fundamental diffusion process in plasmas that can be described by the Landau-Fokker-Planck (LFP) equation or the stochastic differential equation (SDE). While energy and momentum are conserved exactly in the LFP equation, they are conserved only on average by the conventional …

[Phys. Rev. E 111, 025211] Published Fri Feb 28, 2025

Author(s): S. Werbowy, B. Pranszke, and L. Windholz

Studies of the static Stark effect are reported for the multiplets at 615.8, 645.6, 777.6, 822.4, 844.9, and 926.5 nm (vacuum wavelengths) of atomic oxygen, which are important for various applications. From the Stark patterns recorded at very high electric fields up to 780 kV/cm, we have determined…

[Phys. Rev. E 111, 025209] Published Thu Feb 27, 2025

Author(s): Yong Shen, J. Q. Dong, X. D. Peng, H. D. He, and J. X. Li

The magnetohydrodynamic (MHD) instability in the HL-2A tokamak has been comprehensively studied, including ideal MHD ballooning and kink modes, as well as the operational β limit imposed jointly by them. It shows an internal ballooning mode appearing in the plasma with parabolic pressure and current…

[Phys. Rev. E 111, 025208] Published Mon Feb 24, 2025

Author(s): B. Arnold, J. Daligault, D. Saumon, Antoine Bédard, and S. X. Hu

Nucleation in the supercooled Yukawa system is relevant for addressing current challenges in understanding a range of crystallizing systems including white dwarf (WD) stars. We use both brute force and seeded molecular dynamics simulations to study homogeneous nucleation of crystals from supercooled…

[Phys. Rev. E 111, 025206] Published Fri Feb 21, 2025

Author(s): C. Ruyer, P. Loiseau, D. Turnbull, and V. Tikhonchuk

The modeling of a spatially incoherent laser beam remains a central problem of the parametric instabilities in the context of inertial confinement fusion. This paper gives a simplified and comprehensive overview of the recent analytical developments regarding the modeling of these laser beams and a …

[Phys. Rev. E 111, 025207] Published Fri Feb 21, 2025