Physical Review E (Plasma physics)

Author(s): A. A. Shelkovoy and S. A. Uryupin

The deceleration of a low-density beam of ions in plasma with developed ion-acoustic turbulence arising in strong electric field is described. The time and length of beam deceleration along and across the anisotropy axis of the wave number distribution of ion-acoustic waves are found. It is shown to…

[Phys. Rev. E 109, 045206] Published Tue Apr 16, 2024

Author(s): F. Tan, S. Y. Wang, Y. X. Zhang, Z. M. Zhang, B. Zhu, Y. C. Wu, M. H. Yu, Y. Yang, G. li, T. K. Zhang, Y. H. Yan, F. Lu, W. Fan, W. M. Zhou, Y. Q. Gu, and B. Qiao

To find a way to control the electron-bunching process and the bunch-emitting directions when an ultraintense, linearly polarized laser pulse interacts with a nanoscale target, we explored the mechanisms for the periodical generation of relativistic attosecond electron bunches. By comparing the simu…

[Phys. Rev. E 109, 045205] Published Fri Apr 12, 2024

Author(s): G. Pérez-Callejo, T. Gawne, T. R. Preston, P. Hollebon, O. S. Humphries, H.-K. Chung, G. L. Dakovski, J. Krzywinski, M. P. Minitti, T. Burian, J. Chalupský, V. Hájková, L. Juha, V. Vozda, U. Zastrau, S. M. Vinko, S. J. Rose, and J. S. Wark

We report on experiments where solid-density Mg plasmas are created by heating with the focused output of the Linac Coherent Light Source x-ray free-electron laser. We study the K-shell emission from the helium- and lithium-like ions using Bragg crystal spectroscopy. Observation of the dielectronic …

[Phys. Rev. E 109, 045204] Published Wed Apr 10, 2024

Author(s): Timothy T. Aiken and Iain D. Boyd

Electronic excitation and ionization in oxygen-argon mixtures are analyzed using a three-temperature electronic state-resolved model and evaluated using recent experimental data from reflected shock experiments. A detailed description of the model formulation and parameter selection is provided. Exc…

[Phys. Rev. E 109, 045203] Published Mon Apr 08, 2024

Author(s): D. Bénisti, O. Morice, C. Rousseaux, A. Debayle, P. E. Masson-Laborde, and P. Loiseau

In this Letter, we introduce an inline model for stimulated Raman scattering (SRS), which runs on our radiation hydrodynamics code troll. This model accounts for nonlinear kinetic effects and for the SRS feedback on the plasma hydrodynamics. We dubbed it PIEM because it is a fully “PredIctivE Model,…

[Phys. Rev. E 109, L043201] Published Mon Apr 08, 2024

Author(s): Philip J. Morrison and Michael H. Updike

An inclusive framework for joined Hamiltonian and dissipative dynamical systems that are thermodynamically consistent, i.e., preserve energy and produce entropy, is given. The dissipative dynamics of the framework is based on the metriplectic 4-bracket, a quantity like the Poisson bracket defined on…

[Phys. Rev. E 109, 045202] Published Fri Apr 05, 2024

Author(s): Sarah Chouchene, Frédéric Brochard, Nicolas Lemoine, Jordan Cavalier, Mikael Desecures, and Vladimir Weinzettl

Magnetically confined fusion plasmas are subject to various instabilities that cause turbulent transport of particles and heat across the magnetic field. In the edge plasma region, this transport takes the form of long filaments stretched along the magnetic field lines. Understanding the dynamics of…

[Phys. Rev. E 109, 045201] Published Wed Apr 03, 2024

Author(s): Kenan Qu, Alec Griffith, and Nathaniel J. Fisch

According to quantum electrodynamics, in very strong electromagnetic fields electron–positron pairs can be created, and with a high density of pairs an electron-positron plasma can form. In this paper, the authors simulate this process for a relativistic electron beam colliding with an intense laser pulse, and identify observations that could be used as diagnostics in future experiments.

[Phys. Rev. E 109, 035208] Published Wed Mar 27, 2024

Author(s): Tianyi Liang, Dong Wu, Xiaochuan Ning, Lianqiang Shan, Zongqiang Yuan, Hongbo Cai, Zhengmao Sheng, and Xiantu He

The National Ignition Facility has recently achieved successful burning plasma and ignition using the inertial confinement fusion (ICF) approach. However, there are still many fundamental physics phenomena that are not well understood, including the kinetic processes in the hohlraum. Shan et al. [Ph…

[Phys. Rev. E 109, 035207] Published Wed Mar 13, 2024

Author(s): Arianna Formenti, Marta Galbiati, and Matteo Passoni

Double-layer targets (DLTs), made of a low-density foam on top of a solid substrate, can efficiently convert the energy of a high-intensity laser to provide sources of photons and protons. We investigate a 30-fs pulse with a peak intensity of I∼8.7×1020W/cm2 and a peak power of ∼120 TW interacting w…

[Phys. Rev. E 109, 035206] Published Tue Mar 12, 2024

Author(s): Yihang Zhang, Zhe Zhang, Xiaohui Yuan, Kevin Glize, Xu Zhao, Ke Fang, Chenglong Zhang, Yufeng Dong, Shaojun Wang, Xuejie Bai, Bingjun Li, Zhengdong Liu, Huigang Wei, Dawei Yuan, Fuyuan Wu, Yanfei Li, Jiayong Zhong, Yutong Li, and Jie Zhang

The double-cone ignition (DCI) scheme has been proposed as one of the alternative approaches to inertial confinement fusion, based on direct-drive and fast-ignition, in order to reduce the requirement for the driver energy. To evaluate the conical implosion energetics from the laser beams to the pla…

[Phys. Rev. E 109, 035205] Published Mon Mar 11, 2024

Author(s): Huai-Hang Song, Wei-Min Wang, Min Chen, and Zheng-Ming Sheng

During the ultraintense laser interaction with solids (overdense plasmas), the competition between two possible quantum electrodynamics (QED) mechanisms responsible for e± pair production, i.e., linear and nonlinear Breit-Wheeler (BW) processes, remains to be studied. Here, we have implemented the l…

[Phys. Rev. E 109, 035204] Published Fri Mar 08, 2024

Author(s): Xinyu Zhang, Shuai Zhang, Zixiang Yan, Huiling Duan, Yongkun Ding, and Wei Kang

We present a mode-coupled weakly nonlinear model for the evolution of perturbations on cylindrical multilayered shells in a decelerating implosion. We show that nonlinear mode-mode interactions among large wave-number fundamental modes are able to induce the growth of small wave number harmonic mode…

[Phys. Rev. E 109, 035203] Published Tue Mar 05, 2024

Author(s): C. E. Starrett, T. Q. Thelen, C. J. Fontes, and D. A. Rehn

Accurate modeling of warm and hot dense matter is challenging in part due to the multitude of excited states that must be considered. Here, we present a variational framework that models these excited states. In this framework an excited state is defined by a set of effective one-electron occupation…

[Phys. Rev. E 109, 035201] Published Mon Mar 04, 2024

Author(s): Nichen Yu, Dong Huang, Shaoyu Lu, Sergey Khrapak, and Yan Feng

Molecular dynamical simulations are performed to investigate the scaling of the transverse sound speed in two-dimensional (2D) and 3D Yukawa fluids. From the calculated diagnostics of the radial distribution function, the mean-squared displacement, and the Pearson correlation coefficient, the approx…

[Phys. Rev. E 109, 035202] Published Mon Mar 04, 2024

Author(s): B. Y. Li, F. Liu, M. Chen, X. H. Yuan, Z. M. Sheng, and J. Zhang

Spectral modulation of high-order harmonics generated in relativistic laser-solid interaction is investigated. Numerical simulations show that the modulation depends on surface plasma density profile, resulting in spectral envelope modulation and regular and irregular harmonic splitting. The mathema…

[Phys. Rev. E 109, 025212] Published Mon Feb 26, 2024

Author(s): K. G. Zhao, Z. Y. Li, L. F. Wang, Z. H. Di, C. Xue, H. Zhang, J. F. Wu, W. H. Ye, C. T. Zhou, Y. K. Ding, W. Y. Zhang, and X. T. He

This paper presents a numeric study of the dynamic stabilization of the ablative Rayleigh-Taylor instability (ARTI) in the presence of a temporally modulated laser pulse. The results show that the specially modulated laser produces a dynamically stabilized configuration near the ablation front. The …

[Phys. Rev. E 109, 025213] Published Mon Feb 26, 2024

Author(s): A. Hirsch-Passicos, C. L. C. Lacoste, F. André, Y. Elskens, E. D'Humières, V. Tikhonchuk, and M. Bardon

The quality of the proton beam produced by target normal sheath acceleration (TNSA) with high-power lasers can be significantly improved with the use of helical coils. While they showed promising results in terms of focusing, their performances in terms of the of cut-off energy and bunching stay lim…

[Phys. Rev. E 109, 025211] Published Fri Feb 23, 2024

Author(s): R. Sandberg and A. G. R. Thomas

Sandberg and Thomas [Phys. Rev. Lett. 130, 085001 (2023)] proposed a scheme to generate ultrashort, high-energy pulses of XUV photons though dephasingless photon acceleration in a beam-driven plasma wakefield. An ultrashort laser pulse is placed in the plasma wake behind a relativistic electron bunc…

[Phys. Rev. E 109, 025210] Published Fri Feb 16, 2024

Author(s): T. Z. Esirkepov and S. V. Bulanov

When a refractive index modulation of dispersive medium moves at the speed of light in vacuum, an incident electromagnetic wave, depending on its frequency, either is totally transmitted with a phase shift, or forms a standing wave, or is totally reflected with the frequency upshift. The luminal mir…

[Phys. Rev. E 109, L023202] Published Thu Feb 15, 2024