This paper deals with electron acceleration by a laser pulse in a plasma with a static uniform magnetic field ${B}_{*}$. The laser pulse propagates perpendicular to the magnetic field lines with the polarization chosen such that $({\mathit{E}}_{\mathrm{laser}}\xb7{\mathit{B}}_{*})=0$. The focus of the work is on the electrons with an appreciable i...

[Phys. Rev. E 101, 043201] Published Fri Apr 03, 2020

]]>The stability of the negative ion of hydrogen (${\mathrm{H}}^{-}$) embedded in nonideal classical plasma has been studied by computing the ground state energy of the ion quite accurately. The interactions among the charged particles in plasma have been modelled by a pseudopotential, derived from a solution of Bogol...

[Phys. Rev. E 101, 043202] Published Fri Apr 03, 2020

]]>It is well known that collisionless systems are dissipation free from the perspective of particle collision and thus conserve entropy. However, processes such as magnetic reconnection and turbulence appear to convert large-scale magnetic energy into heat. In this paper, we investigate the energizati...

[Phys. Rev. E 101, 033208] Published Tue Mar 24, 2020

]]>The inversion of the electron energy distribution function (EEDF) at low energies and the absolute negative electron conductivity are predicted and confirmed by numerical modeling of a direct current glow discharge in argon. It is shown that, in contrast to the local approximation used earlier for s...

[Phys. Rev. E 101, 031202(R)] Published Mon Mar 23, 2020

]]>Two-dimensional particle-in-cell simulations for laser plasma interaction with laser intensity of ${10}^{16}\phantom{\rule{0.28em}{0ex}}\mathrm{W}/{\mathrm{cm}}^{2}$, plasma density range of $0.01\u20130.28{n}_{c}$, and scale length of $230\u2013330\phantom{\rule{0.28em}{0ex}}\mu \mathrm{m}$ showed significant pump depletion of the laser energy due to stimulated Raman scattering (SRS) and stimulated Brillouin scat...

[Phys. Rev. E 101, 033206] Published Wed Mar 18, 2020

]]>Complex plasma mixtures with three or more components are often encountered in astrophysics or in inertial confinement fusion (ICF) experiments. For mixtures containing species with large differences in atomic number Z, the modeling needs to consider at the same time the kinetic theory for low-Z ele...

[Phys. Rev. E 101, 033207] Published Wed Mar 18, 2020

]]>We present direct measurements of electron temperature variations within an inertially confined deuterium-tritium plasma caused by localized mix of higher-Z materials into the central hot spot. The data are derived from newly developed differentially filtered penumbral imaging of the bremsstrahlung ...

[Phys. Rev. E 101, 033205] Published Tue Mar 17, 2020

]]>We show that a commonly accepted transparency threshold for a thin foil in a strong circularly polarized normally incident laser pulse needs a refinement. We present an analytical model that correctly accounts for laser absorption. The refined threshold is determined not solely by the laser amplitud...

[Phys. Rev. E 101, 033204] Published Mon Mar 09, 2020

]]>Relativistic electron temperatures were measured from kilojoule, subrelativistic laser-plasma interactions. Experiments show an order of magnitude higher temperatures than expected from a ponderomotive scaling, where temperatures of up to 2.2 MeV were generated using an intensity of $1\times {10}^{18}\phantom{\rule{4pt}{0ex}}\mathrm{W}/{\mathrm{cm}}^{2}$. Two...

[Phys. Rev. E 101, 031201(R)] Published Wed Mar 04, 2020

]]>The plasma sheath is the non-neutral space charge region that isolates bulk plasma from a boundary. Radio-frequency (RF) sheaths are formed when applying RF voltage to electrodes. Generally, applied bias is mainly consumed by a RF sheath, which shields an external field. Here we report evidence that...

[Phys. Rev. E 101, 033203] Published Wed Mar 04, 2020

]]>Electronic parametric instabilities of an ultrarelativistic circularly polarized laser pulse propagating in underdense plasmas are studied by numerically solving the dispersion relation which includes the effect of the radiation reaction force in laser-driven plasma dynamics. Emphasis is placed on s...

[Phys. Rev. E 101, 033201] Published Mon Mar 02, 2020

]]>The unique spatial and temporal properties of relativistic high harmonics generated from a laser-driven plasma surface allow them to be coherently focused to an extremely high intensity reaching the Schwinger limit. The ultimately achievable intensity is limited by the harmonic wavefront distortions...

[Phys. Rev. E 101, 033202] Published Mon Mar 02, 2020

]]>A theoretically highly efficient mechanism, operating at high laser intensities and powers, is identified for spectral transferring huge laser energies to shorter ultraviolet and x-ray wavelengths. With megajoule laser energies currently available at near-optical wavelengths, this transfer would, in...

[Phys. Rev. E 101, 023211] Published Wed Feb 26, 2020

]]>We experimentally investigate the cooperative excitations in the transition from a self-excited three-dimensional ordered plane wave to a defect-mediated turbulence (DMT) state with multiple unstable defect filaments in a dusty plasma system. It is found that, with increasing effective driving, a si...

[Phys. Rev. E 101, 023210] Published Tue Feb 25, 2020

]]>Laser wakefield acceleration relies on the excitation of a plasma wave due to the ponderomotive force of an intense laser pulse. However, plasma wave trains in the wake of the laser have scarcely been studied directly in experiments. Here we use few-cycle shadowgraphy in conjunction with interferome...

[Phys. Rev. E 101, 023209] Published Mon Feb 24, 2020

]]>Ultracold neutral plasma (UNP) experiments allow for careful control of plasma properties across Coulomb coupling regimes. Here, we examine how UNPs can be used to study heterogeneous, nonequilibrium phenomena, including nonlinear waves, transport, hydrodynamics, kinetics, stopping power, and instab...

[Phys. Rev. E 101, 023207] Published Wed Feb 19, 2020

]]>Carbon shell areal density measurements from many types of inertial confinement fusion implosions at the National Ignition Facility (NIF) demonstrate that the final state of the outside portion of the shell is set primarily by capsule coast time, the coasting period between main laser shut off and p...

[Phys. Rev. E 101, 023208] Published Wed Feb 19, 2020

]]>We compare two formulas obtained from first principles to calculate the electron-ion coupling factor for temperature relaxation in dense plasmas. The quantum average-atom model is used to calculate this electron-ion coupling factor. It is shown that if the two formulas agree at sufficiently high tem...

[Phys. Rev. E 101, 023206] Published Tue Feb 18, 2020

]]>We report measurements of $K$-shell fluorescence lines induced by fast electrons in ramp-compressed Co targets. The fluorescence emission was stimulated by fast electrons generated through short-pulse laser-solid interaction with an Al target layer. Compression up to $2.1\times $ solid density was achieved wh...

[Phys. Rev. E 101, 023204] Published Fri Feb 14, 2020

]]>Currently there is considerable interest in creating scalable laboratory plasmas to study the mechanisms behind the formation and evolution of astrophysical phenomena such as Herbig-Haro objects and supernova remnants. Laboratory-scaled experiments can provide a well diagnosed and repeatable supplem...

[Phys. Rev. E 101, 023205] Published Fri Feb 14, 2020

]]>Whole-plasma simulations of turbulent transport and upgradient plasma pinch are presented in a dipole magnetic geometry relevant to the Levitated Dipole Experiment (LDX). The self-consistent evolution of an inward particle pinch and the establishment of centrally peaked plasma profiles in a dipole f...

[Phys. Rev. E 101, 021201(R)] Published Mon Feb 10, 2020

]]>Third-order transport coefficient tensor of charged-particle swarms in neutral gases in the presence of spatially uniform electric and magnetic fields is considered using a multiterm solution of Boltzmann's equation and Monte Carlo simulation technique. The structure of the third-order transport coe...

[Phys. Rev. E 101, 023203] Published Mon Feb 10, 2020

]]>Coulomb plasmas crystallize in a number of physical systems, such as dusty plasmas, neutron star crusts, and white dwarf cores. The crystal structure of the one-component and binary plasma has received significant attention in the literature, though the less studied multicomponent plasma may be most...

[Phys. Rev. E 101, 023201] Published Thu Feb 06, 2020

]]>The work presented in this paper shows with the help of two-dimensional hydrodynamic simulations that intense heavy-ion beams are a very efficient tool to induce high energy density (HED) states in solid matter. These simulations have been carried out using a computer code BIG2 that is based on a Go...

[Phys. Rev. E 101, 023202] Published Thu Feb 06, 2020

]]>Most treatments of electron-electron correlations in dense plasmas either ignore them entirely (random phase approximation) or neglect the role of ions (jellium approximation). In this work, we go beyond both these approximations to derive a formula for the electron-electron static structure factor ...

[Phys. Rev. E 101, 013208] Published Fri Jan 31, 2020

]]>Sandpile models have been used to provide simple phenomenological models without incorporating the detailed features of a fully featured model. The Chapman sandpile model [Chapman *et al.*, Phys. Rev. Lett. **86**, 2814 (2001)] has been used as an analog for the behavior of a plasma edge, with mass loss ...

[Phys. Rev. E 101, 013207] Published Wed Jan 29, 2020

]]>Thermal fusion plasmas initiated by standing whistler waves are investigated numerically by two- and one-dimensional particle-in-cell simulations. When a standing whistler wave collapses due to the wave breaking of ion plasma waves, the energy of the electromagnetic waves transfers directly to the i...

[Phys. Rev. E 101, 013206] Published Tue Jan 28, 2020

]]>We discuss a method to calculate with quantum molecular dynamics simulations the rate of energy exchanges between electrons and ions in two-temperature plasmas, liquid metals, and hot solids. Promising results from this method were recently reported for various materials and physical conditions [Sim...

[Phys. Rev. E 101, 013205] Published Mon Jan 27, 2020

]]>The nuclear reaction known as proton-boron fusion has been triggered by a subnanosecond laser system focused onto a thick boron nitride target at modest laser intensity ($\sim {10}^{16}\phantom{\rule{0.28em}{0ex}}{\mathrm{W}/\mathrm{cm}}^{2}$), resulting in a record yield of generated α particles. The estimated value of α particles emitted per laser pulse is a...

[Phys. Rev. E 101, 013204] Published Tue Jan 21, 2020

]]>The upcoming $10\u2013100$ PW laser facilities may deliver laser pulses with unprecedented intensity of ${10}^{22}\u2013{10}^{25}\phantom{\rule{0.28em}{0ex}}\mathrm{W}\phantom{\rule{0.16em}{0ex}}{\mathrm{cm}}^{-2}$. Such laser pulses interacting with ultrarelativistic electrons accelerated in plasma can trigger various nonlinear quantum electrodynamic processes. Usually, ion motion is expected to be ...

[Phys. Rev. E 101, 011201(R)] Published Thu Jan 16, 2020

]]>Using molecular dynamical simulations, compressional shocks in two-dimensional (2D) dusty plasmas are quantitatively investigated under various conditions. A universal relationship between the thermal and the drift velocities after shocks is discovered in 2D Yukawa systems. Using the equation of sta...

[Phys. Rev. E 101, 013203] Published Thu Jan 16, 2020

]]>Discrete eigenmodes of the filamentation instability in a weakly ionized current-driven plasma in the presence of a $q$-nonextensive electron velocity distribution is investigated. Considering the kinetic theory, Bhatnagar-Gross-Krook collision model, and Lorentz transformation relations, the generali...

[Phys. Rev. E 101, 013202] Published Mon Jan 06, 2020

]]>We consider a differentially rotating flow of an incompressible electrically conducting and viscous fluid subject to an external axial magnetic field and to an azimuthal magnetic field that is allowed to be generated by a combination of an axial electric current external to the fluid and electrical ...

[Phys. Rev. E 101, 013201] Published Fri Jan 03, 2020

]]>Laser-generated plasma gratings are dynamic optical elements for the manipulation of coherent light at high intensities, beyond the damage threshold of solid-state-based materials. Their formation, evolution, and final collapse require a detailed understanding. In this paper, we present a model to e...

[Phys. Rev. E 100, 061201(R)] Published Tue Dec 24, 2019

]]>We report on the deflection of laser pulses and accelerated electrons in a laser-plasma accelerator (LPA) by the effects of laser pulse front tilt and transverse density gradients. Asymmetry in the plasma index of refraction leads to laser steering, which can be due to a density gradient or spatiote...

[Phys. Rev. E 100, 063208] Published Mon Dec 23, 2019

]]>Turbulence structures with the magnetic Prandtl number larger than unity are studied by means of direct numerical simulations of homogeneous, isotropic, and incompressible Hall magnetohydrodynamic (MHD) turbulence driven by a random force. Spectral and spatial structures on the scales smaller than t...

[Phys. Rev. E 100, 063207] Published Wed Dec 18, 2019

]]>A many-body system of charged particles interacting via a pairwise Yukawa potential, the so-called Yukawa one-component plasma (YOCP), is a good approximation for a variety of physical systems. Such systems are completely characterized by two parameters: the screening parameter, $\kappa $, and the nominal c...

[Phys. Rev. E 100, 063206] Published Tue Dec 17, 2019

]]>The rapid growth of viscosity driven by temperature increase in turbulent plasmas under compression induces a sudden dissipation of kinetic energy, eventually leading to the relaminarization of the flow [Davidovits and Fisch, Phys. Rev. Lett. **116**, 105004 (2016)]. The interdiffusion between species i...

[Phys. Rev. E 100, 063205] Published Fri Dec 13, 2019

]]>Double-shell ignition designs have been studied with the indirect-drive inertial confinement fusion (ICF) scheme in both simulations and experiments in which the inner-shell kinetic energy was limited to ∼10–15 kJ, even driven by megajoule-class lasers such as the National Ignition Facility. Since d...

[Phys. Rev. E 100, 063204] Published Thu Dec 12, 2019

]]>A deflection effect of an intense laser beam with spin angular momentum is revealed theoretically by an analytical modeling using radiation pressure and momentum balance of laser plasma interaction in the relativistic regime as a deviation from the law of reflection. The reflected beam deflects out ...

[Phys. Rev. E 100, 063203] Published Wed Dec 11, 2019

]]>The breaking of a plane self-excited dust-acoustic soliton in a dust cloud formed in stratified dc glow discharge plasma is studied. Both macroscopic and kinetic parameters of the dust component near the soliton are experimentally obtained. It is shown that the breaking of a soliton can accelerate c...

[Phys. Rev. E 100, 063202] Published Tue Dec 03, 2019

]]>A kagome-white-eye-honeycomb hexagonal superlattice pattern is observed in dielectric barrier discharge and studied by two photomultipliers, an intensified charge-coupled device, and a spectrograph. It consists of four sublattices, which are kagome structure, halos of white-eye hexagon, honeycomb fr...

[Phys. Rev. E 100, 063201] Published Mon Dec 02, 2019

]]>The quantum hydrodynamic model is used to study the linear and nonlinear properties of small amplitude magnetosonic shock waves in dissipative plasma with degenerate inertialess spin-up and spin-down electrons and inertial classical ions. Spin effects are considered via spin pressure and macroscopic...

[Phys. Rev. E 100, 053206] Published Wed Nov 27, 2019

]]>By introducing preplasma truncation to cases with an initial preplasma scale length larger than $0.2\lambda $, the efficiency of high-order harmonics generated from relativistic laser-solid interactions can be enhanced by more than one order of magnitude and the angular spread can be confined into near-diffr...

[Phys. Rev. E 100, 053207] Published Wed Nov 27, 2019

]]>Efficient energy transfer from electromagnetic waves to ions has been demanded to control laboratory plasmas for various applications and could be useful to understand the nature of space and astrophysical plasmas. However, there exists the severe unsolved problem that most of the wave energy is con...

[Phys. Rev. E 100, 053205] Published Tue Nov 26, 2019

]]>Single-cycle pulses with multimillion volts per centimeter field strengths and spectra in the terahertz (THz) band have attracted great interest due to their ability to coherently manipulate molecular orientations and electron spins resonantly and nonresonantly. The tremendous progress made in the d...

[Phys. Rev. E 100, 053203] Published Mon Nov 25, 2019

]]>Relativistic laser-solid target interaction is a powerful source of terahertz radiation where broadband terahertz radiation is emitted from the front and rear surfaces of the target. Even though several experimental works have reported the generation of subpicosecond duration gigawatt peak power ter...

[Phys. Rev. E 100, 053204] Published Mon Nov 25, 2019

]]>In this paper, we show how plasma discharge capillaries can be numerically modeled as resistors within an RLC-series discharge circuit, allowing for a simple description of these systems, while taking into account heat and radiation losses. An analytic radial model is also provided and compared to t...

[Phys. Rev. E 100, 053202] Published Mon Nov 18, 2019

]]>The steady-state fluctuation theorem (SSFT) gives the relative probability of occurrence of events violating the second law of thermodynamics in a system with a small number of degrees of freedom. Using two-dimensional complex plasma as a working medium, wherein particle level observation of instant...

[Phys. Rev. E 100, 053201] Published Thu Nov 07, 2019

]]>Equilibrium molecular dynamics simulations are used to calculate the thermal conductivity of the one-component plasma via the Green-Kubo formalism over a broad range of Coulomb coupling strength, $0.1\le \mathrm{\Gamma}\le 180$. These simulations address previous discrepancies between computations using equilibrium versu...

[Phys. Rev. E 100, 043206] Published Wed Oct 23, 2019

]]>The free-free opacity in dense systems is a property that both tests our fundamental understanding of correlated many-body systems, and is needed to understand the radiative properties of high energy-density plasmas. Despite its importance, predictive calculations of the free-free opacity remain cha...

[Phys. Rev. E 100, 043207] Published Wed Oct 23, 2019

]]>We develop a quantitative relationship between magnetic diffusion and the level of randomness, or stochasticity, of the diffusing magnetic field in a magnetized medium. A general mathematical formulation of magnetic stochasticity in turbulence has been developed in previous work in terms of the ${\mathcal{L}}_{p}$ n...

[Phys. Rev. E 100, 043205] Published Fri Oct 18, 2019

]]>Warm dense carbon is generated at 0.3–2.0 g/cc and 1–7 eV by proton heating. The release equation of state (EOS) after heating and thermal conductivity of warm dense carbon are studied experimentally in this regime using a Au/C dual-layer target to initiate a temperature gradient and two picosecond ...

[Phys. Rev. E 100, 043204] Published Thu Oct 17, 2019

]]>We investigate the precession of electron spins during beam-driven plasma-wakefield acceleration based on density down-ramp injection by means of full three-dimensional (3D) particle-in-cell (PIC) simulations. A relativistic electron beam generated via, e.g., laser wakefield acceleration, serves as ...

[Phys. Rev. E 100, 043202] Published Fri Oct 11, 2019

]]>What happens in plasmas after a compressional shock wave? In this paper, the authors perform numerical simulations to investigate the thermodynamic properties of the postshock region in two-dimensional Yukawa systems to mimic shocks in two-dimensional dusty plasmas.

[Phys. Rev. E 100, 043203] Published Fri Oct 11, 2019

]]>We present a theory for the rate of energy exchange between electrons and ions—also known as the electron-ion coupling factor—in physical systems ranging from hot solid metals to plasmas, including liquid metals and warm dense matter. The paper provides the theoretical foundations of a recent work [...

[Phys. Rev. E 100, 043201] Published Wed Oct 09, 2019

]]>The nonlinear regime of laser-plasma interactions including both two-plasmon decay (TPD) and stimulated Raman scattering (SRS) instabilities has been studied in three-dimensional (3D) particle-in-cell simulations with parameters relevant to the inertial confinement fusion (ICF) experiments. SRS and ...

[Phys. Rev. E 100, 041201(R)] Published Fri Oct 04, 2019

]]>We present the formulation, simulations, and results for multicomponent mutual diffusion coefficients in the warm, dense matter regime. While binary mixtures have received considerable attention for mass transport, far fewer studies have addressed ternary and more complex systems. We therefore expli...

[Phys. Rev. E 100, 033213] Published Mon Sep 30, 2019

]]>Extensive quantum molecular dynamics (QMD) simulations are performed to determine the equation of state, sound velocity, and phase diagram of middle-$Z$ krypton in a warm dense regime where the pressure (P) is up to 300 GPa and the temperature is up to 60 kK. The shock wave experimental data are used ...

[Phys. Rev. E 100, 033214] Published Mon Sep 30, 2019

]]>A profile-evolving simulation of the Controlled Shear Decorrelation Experiment (CSDX) linear device is performed with our newly developed code. The simulation result shows an excellent agreement with the experimental observations of profiles and fluctuations of plasma density and electric potential ...

[Phys. Rev. E 100, 033212] Published Thu Sep 26, 2019

]]>We investigate Fickian diffusion in two-dimensional (2D) Yukawa liquids using molecular dynamics simulations. We compute the self–van Hove correlation function ${G}_{s}(r,t)$ and the self-intermediate scattering function ${F}_{s}(k,t)$, and we compare these functions with those obtained from mean-squared displace...

[Phys. Rev. E 100, 033211] Published Wed Sep 25, 2019

]]>Proton radiography is a technique in high-energy density science to diagnose magnetic and/or electric fields in a plasma by firing a proton beam and detecting its modulated intensity profile on a screen. Current approaches to retrieve the integrated field from the modulated intensity profile require...

[Phys. Rev. E 100, 033208] Published Tue Sep 24, 2019

]]>In this second paper of a series, we discuss the dynamics of a plasma entering the precursor of an unmagnetized, relativistic collisionless pair shock. We discuss how this background plasma is decelerated and heated through its interaction with a microturbulence that results from the growth of a cur...

[Phys. Rev. E 100, 033209] Published Tue Sep 24, 2019

]]>In this third paper of a series, we discuss the physics of the population of accelerated particles in the precursor of an unmagnetized, relativistic collisionless pair shock. In particular, we provide a theoretical estimate of their scattering length ${l}_{\mathrm{scatt}}\left(p\right)$ in the self-generated electromagnetic t...

[Phys. Rev. E 100, 033210] Published Tue Sep 24, 2019

]]>We investigate the depinning dynamics of two-dimensional dusty plasmas driven over one-dimensional periodic substrates using Langevin dynamical simulations. We find that, for a specific range of substrate strengths, as the external driving force increases from zero, there are three different states,...

[Phys. Rev. E 100, 033207] Published Fri Sep 20, 2019

]]>Inertial confinement fusion fuel suffers increased x-ray radiation losses when carbon from the capsule ablator mixes into the hot-spot. Here, we present one- and two-dimensional ion Vlasov-Fokker-Planck simulations that resolve hot-spot self-heating in the presence of a localized spike of carbon mix...

[Phys. Rev. E 100, 033206] Published Mon Sep 09, 2019

]]>We present a method of sound amplification and self-oscillation in high pressure partially ionized gas. Continuous microwaves incident on partially ionized gas may sustain and amplify an acoustic field if increased ionization during the sound field's adiabatic compression enhances rf power absorptio...

[Phys. Rev. E 100, 033204] Published Fri Sep 06, 2019

]]>Beating of a broad laser reference beam with a quite general focused object beam inside a plasma volume generates a dynamic plasma hologram. Both beams may be of moderate intensity. The volume hologram can be read out by an ultraintense main beam (of similar structure as the reference beam) producin...

[Phys. Rev. E 100, 033205] Published Fri Sep 06, 2019

]]>In the present study, three different electronic state-to-state methods are proposed to analyze nonequilibrium air plasma flows behind a strong shock wave. In the first approach representing the conventional method, a two-temperature model combined with the electronic quasi-steady-state assumption i...

[Phys. Rev. E 100, 033203] Published Thu Sep 05, 2019

]]>We present calculations of electrical resistivity in dense plasmas using the average-atom model. The Born approximation is proposed to improve the computations especially in the hot domain of the density and temperature plane. Both the nonrelativistic and relativistic regimes are considered. Numeric...

[Phys. Rev. E 100, 033202] Published Wed Sep 04, 2019

]]>Laser imprinting possesses a potential danger for low-adiabat and high-convergence implosions in direct-drive inertial confinement fusion (ICF). Within certain direct-drive ICF schemes, a laser picket (prepulse) is used to condition the target to increase the interaction efficiency with the main pul...

[Phys. Rev. E 100, 033201] Published Tue Sep 03, 2019

]]>The correct modeling of velocity distribution functions for particles in steady-state plasmas is a central element in the study of nuclear fusion and also in the description of space plasmas. In this paper, a statistical mechanical formalism for the description of collisionless plasmas in a steady s...

[Phys. Rev. E 100, 023205] Published Wed Aug 28, 2019

]]>The article presents the results of the detailed experimental study of fast conical discharge with Ar as a working gas. The discharge produces a compact transient plasma which emits extreme ultraviolet (EUV) radiation with wavelength 10.8 nm. The intensity of this spectral line is an order of magnit...

[Phys. Rev. E 100, 023204] Published Thu Aug 22, 2019

]]>We describe a platform developed on the LULI2000 laser facility to investigate the evolution of Rayleigh-Taylor instability (RTI) in scaled conditions relevant to young supernova remnants (SNRs) up to 200 years. An RT unstable interface is imaged with a short-pulse laser-driven (PICO2000) x-ray sour...

[Phys. Rev. E 100, 021201(R)] Published Mon Aug 19, 2019

]]>Defects play a crucial role in physics of solids, affecting their mechanical, electromagnetic, and chemical properties. However, influence of thermal defects on wave propagation in exothermic reactions (flame fronts) still remains poorly understood at the molecular level. Here, we show that thermal ...

[Phys. Rev. E 100, 023203] Published Mon Aug 19, 2019

]]>The spectrum of the radiation of a body in equilibrium is given by Planck's law. In plasma, however, waves below the plasma frequency cannot propagate; consequently, the equilibrium radiation inside plasma is necessarily different from the Planck spectrum. We derive, using three different approaches...

[Phys. Rev. E 100, 023202] Published Mon Aug 12, 2019

]]>We study a recently derived fully relativistic kinetic model for spin-1/2 particles. First, the full set of conservation laws for energy, momentum, and angular momentum are given together with an expression for the (nonsymmetric) stress-energy tensor. Next, the thermodynamic equilibrium distribution...

[Phys. Rev. E 100, 023201] Published Thu Aug 08, 2019

]]>A high-order implicit multidimensional particle-in-cell (PIC) method is developed for simulating plasmas at solid densities. The space-time arrangement is based on Yee and a leapfrog algorithm for electromagnetic fields and particle advancement. The field solver algorithm completely eliminates numer...

[Phys. Rev. E 100, 013207] Published Fri Jul 26, 2019

]]>A particle-in-cell (PIC) simulation code is used to investigate the transport and energy deposition of an intense proton beam in solid-state material. This code is able to simulate close particle interactions by using a Monte Carlo binary collision model. Such a model takes into account all related ...

[Phys. Rev. E 100, 013208] Published Fri Jul 26, 2019

]]>In this first paper of a series dedicated to the microphysics of unmagnetized, relativistic collisionless pair shocks, we discuss the physics of the Weibel-type transverse current filamentation instability that develops in the shock precursor, through the interaction of an ultrarelativistic suprathe...

[Phys. Rev. E 100, 013205] Published Wed Jul 17, 2019

]]>The dynamic structure factor (DSF) of the Yukawa system is here obtained with highly converged molecular dynamics (MD) over the entire liquid phase. The data provide a rigorous test of theoretical models of ion-acoustic wave-dispersion relations, the intermediate scattering function, and the high-fr...

[Phys. Rev. E 100, 013206] Published Wed Jul 17, 2019

]]>The structure of Langmuir plasma waves carrying a finite orbital angular momentum is revised in the paraxial approximation. It is shown that the kinetic effects related to higher-order momenta of the electron distribution function lead to coupling of Laguerre-Gaussian modes and result in a modificat...

[Phys. Rev. E 100, 013204] Published Mon Jul 15, 2019

]]>We present a mathematical formalism for the topology and stochasticity of vector fields based on renormalization group methodology. The concept of a scale-split energy density, ${\psi}_{l,L}={\mathbf{B}}_{l}\xb7{\mathbf{B}}_{L}/2$ for vector field $\mathbf{B}(\mathbf{x},t)$ renormalized at scales $l$ and $L$, is introduced in order to quantify the notion of the f...

[Phys. Rev. E 100, 013201] Published Mon Jul 08, 2019

]]>This paper describes a computational model that self-consistently combines physics of kinetic electrons and atomic processes in a single framework. The formulation consists of a kinetic Vlasov-Boltzmann-Fokker-Planck equation for free electrons and a non-Maxwellian collisional-radiative model for at...

[Phys. Rev. E 100, 013202] Published Mon Jul 08, 2019

]]>The dynamics of the boundary layer in between two distinct collisionless plasmas created by the interaction between a dense object modeling a cluster and a short laser pulse in the presence of an ambient gas is studied with two dimensional relativistic particle-in-cell simulations, which are found t...

[Phys. Rev. E 100, 013203] Published Mon Jul 08, 2019

]]>Recent path-integral Monte Carlo and quantum molecular dynamics simulations have shown that computationally efficient average-atom models can predict thermodynamic states in warm dense matter to within a few percent. One such atom-in-jellium model has typically been used to predict the electron-ther...

[Phys. Rev. E 99, 063210] Published Fri Jun 28, 2019

]]>In the present study rate coefficients for vibrational excitation of ${\mathrm{CO}}_{2}$ gas molecules by electrons in the presence of uniform electric and magnetic fields are investigated. Calculations are performed for transition from the ground state to each of the symmetric, asymmetric, and bending vibrational ...

[Phys. Rev. E 99, 063211] Published Fri Jun 28, 2019

]]>Resonant three-wave coupling is an important mechanism via which waves interact in a nonlinear medium. When the medium is a magnetized warm-fluid plasma, a previously unknown formula for the coupling coefficients is derived by solving the fluid-Maxwell's equations to second order using multiscale pe...

[Phys. Rev. E 99, 063212] Published Fri Jun 28, 2019

]]>We set up a proposal to extend significantly recent works on neutrino-plasma interaction, allowing the possibility of deep degenerate and relativistic electrons, which are often present in compact stars such as high-density white dwarfs. The methodology involves the covariant hydrodynamic formulatio...

[Phys. Rev. E 99, 063209] Published Thu Jun 27, 2019

]]>Nonideal plasmas have nontrivial space and time correlations, which simultaneously impact both the excess thermodynamic quantities as well as the collision processes. However, hydrodynamics models for designing and interpreting nonideal plasma experiments, such as inertial-confinement fusion experim...

[Phys. Rev. E 99, 063207] Published Mon Jun 24, 2019

]]>Perturbations in the velocity profile of a laser-ablation-driven shock wave seeded by speckle in the spatial beam intensity (i.e., laser imprint) have been measured. Direct measurements of these velocity perturbations were recorded using a two-dimensional high-resolution velocimeter probing plastic ...

[Phys. Rev. E 99, 063208] Published Mon Jun 24, 2019

]]>Coagulation growth kinetics of nanoparticles in plasma is affected by interparticle electrostatic forces due to the charging phenomenon. In stationary plasmas, unipolar charging of particles results in retardation of particle growth and may result in a limitation on particle size. We demonstrate the...

[Phys. Rev. E 99, 063205] Published Thu Jun 20, 2019

]]>Langevin dynamical simulations of two-dimensional (2D) Yukawa liquids are performed to investigate the shear modulus of 2D solid dusty plasmas. Using the known transverse sound speeds, we obtain a theoretical expression of the shear modulus of 2D Yukawa crystals as a function of the screening parame...

[Phys. Rev. E 99, 063206] Published Thu Jun 20, 2019

]]>We calculate the Thomson scattering cross section in a nonrelativistic, magnetized, high-density plasma—in a regime where collective excitations can be described by magnetohydrodynamics. We show that, in addition to cyclotron resonances and an elastic peak, the cross section exhibits two pairs of pe...

[Phys. Rev. E 99, 063204] Published Tue Jun 18, 2019

]]>The temperature of a dust ensemble in a dusty plasma is one of its most fundamental properties. Here, we present experiments using the configurational temperature as a for the temperature analysis in dusty plasmas. Using a model of the particle interactions, the configurational temperature allows us...

[Phys. Rev. E 99, 063203] Published Thu Jun 13, 2019

]]>A comprehensive parametric study of plasma-grain interaction for non-Maxwellian streaming ions in steady-state employing particle-in-cell simulations is delineated. Instead of considering the intergrain interaction potential to be the linear sum of isolated grain potentials, we incorporate the numer...

[Phys. Rev. E 99, 063202] Published Mon Jun 10, 2019

]]>Localized plasma waves can be generated by suddenly ionizing extrinsic semiconductors with spatially periodic dopant densities. The built-in electrostatic potentials at the metallurgical junctions, combined with electron density ripples, offer the exact initial condition for exciting long-lasting pl...

[Phys. Rev. E 99, 063201] Published Tue Jun 04, 2019

]]>In the last experiment with the PK-3 Plus laboratory onboard the International Space Station, interactions of millimeter-size metallic spheres with a complex plasma were studied [M. Schwabe *et al.*, New J. Phys. **19**, 103019 (2017)]. Among the phenomena observed was the formation of cavities (regions f...

[Phys. Rev. E 99, 053210] Published Fri May 31, 2019

]]>A detailed comparison is presented of analytical and particle-in-cell simulation investigation of the transverse instability, in two dimensions, of initially one-dimensional electron phase-space hole equilibria. Good quantitative agreement is found between the shift-mode analysis and the simulations...

[Phys. Rev. E 99, 053209] Published Thu May 30, 2019

]]>Intermittent phenomena have long been studied in the context of nondiffusive transport across a variety of fields. In the TORPEX device, the cross-field spreading of an injected suprathermal ion beam by electrostatic plasma turbulence can access different nondiffusive transport regimes. A comprehens...

[Phys. Rev. E 99, 053208] Published Wed May 29, 2019

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