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

]]>Proton radiography experiments of laser-irradiated hohlraums performed at the OMEGA laser facility are analyzed using three-dimensional (3D) hydrodynamic simulations coupled to a proton trajectography package. Experiments with three different laser irradiation patterns were performed, and each produ...

[Phys. Rev. E 99, 053207] Published Tue May 28, 2019

]]>Transport properties of high-energy-density plasmas are influenced by the ion collision rate. Traditionally, this rate involves the Coulomb logarithm, $ln\mathrm{\Lambda}$. Typical values of $ln\mathrm{\Lambda}$ are $\approx 10\u201320$ in kinetic theories where transport properties are dominated by weak-scattering events caused by long-range for...

[Phys. Rev. E 99, 053206] Published Tue May 21, 2019

]]>Using a generally covariant electrovortic (magnetofluid) formalism for relativistic plasmas, the dynamical evolution of a generalized vorticity (a combination of the magnetic and kinematic parts) is studied in a cosmological context. We derive macroscopic vorticity and magnetic field structures that...

[Phys. Rev. E 99, 053204] Published Mon May 13, 2019

]]>X-ray Thomson scattering experiments in the soft and hard x-ray regime yield information on fundamental parameters of high-density systems. Pump-probe experiments with variable time delay provide insight into the excitation and relaxation dynamics in dense plasmas. On short time scales, a local ther...

[Phys. Rev. E 99, 053205] Published Mon May 13, 2019

]]>The dynamical structure factor (DSF) of strongly coupled ions in dense plasmas with partially and strongly degenerate electrons is investigated. The main focus is on the impact of electronic correlations (nonideality) on the ionic DSF. The latter is computed by carrying out molecular dynamics (MD) s...

[Phys. Rev. E 99, 053203] Published Fri May 10, 2019

]]>We present a local approach to the study of scale-to-scale energy transfers in magnetohydrodynamic (MHD) turbulence. This approach is based on performing local averages of the physical fields, which amounts to filtering scales smaller than some parameter $\ell $. A key step in this work is the derivation ...

[Phys. Rev. E 99, 053202] Published Thu May 09, 2019

]]>Expressions of pressure in warm and hot dense matter using the average-atom model are presented. They are based on the stress-tensor approach. Nonrelativistic and relativistic cases are considered. The obtained formulas are simple and can be easily implemented in an average-atom model code. Comparis...

[Phys. Rev. E 99, 053201] Published Fri May 03, 2019

]]>This Rapid Communication identifies the physical mechanism for the quench of turbulent resistivity in two-dimensional magnetohydrodynamics. Without an imposed, ordered magnetic field, a multiscale, blob-and-barrier structure of magnetic potential forms spontaneously. Magnetic energy is concentrated ...

[Phys. Rev. E 99, 041201(R)] Published Mon Apr 29, 2019

]]>Collisionless shock acceleration of carbon ions $\left({\mathrm{C}}^{6+}\right)$ is investigated in the ultrarelativistic regime of laser-plasma interaction by accounting for the radiation reaction force and the pair production in particle-in-cell simulations. Both radiation reaction force and pair-plasma formation tend to sl...

[Phys. Rev. E 99, 043205] Published Mon Apr 29, 2019

]]>Magnetic coherent vortical structures are ubiquitous in space and astrophysical plasmas and their detection is key to understanding the nature of the intrinsic turbulence in those conducting fluids. A recently developed method to detect magnetic vortices is explored in problems of two- and three-dim...

[Phys. Rev. E 99, 043206] Published Mon Apr 29, 2019

]]>Dharma-wardana *et al.* [M. W. C. Dharma-wardana *et al.*, Phys. Rev. E **96**, 053206 (2017)] recently calculated dynamic electrical conductivities for warm dense matter as well as for nonequilibrium two-temperature states termed “ultrafast matter” (UFM) [M. W. C. Dharma-wardana, Phys. Rev. E **93**, 063205 (...

[Phys. Rev. E 99, 047201] Published Wed Apr 24, 2019

]]>The electron diffusion region (EDR) is the region where magnetic reconnection is initiated and electrons are energized. Because of experimental difficulties, the structure of the EDR is still poorly understood. A key question is whether the EDR has a homogeneous or patchy structure. Here we report M...

[Phys. Rev. E 99, 043204] Published Tue Apr 09, 2019

]]>It is shown that photons of the prolonged emission recorded by the Gamma-Ray Observation of Winter Thunderclouds (GROWTH) experiment on January 13, 2012 [D. Umemoto *et al.*, Phys. Rev E **93**, 021201(R) (2016)] could be emitted by ball lightning and generated by annihilation of positrons which arose mai...

[Phys. Rev. E 99, 043203] Published Mon Apr 08, 2019

]]>New data for the reflectivity of shock-compressed xenon plasmas at pressures of 10–12 GPa at large incident angles are presented. In addition, measurements have been performed at different densities. These data allow to analyze the free-electron density profile across the shock wave front. Assuming ...

[Phys. Rev. E 99, 043202] Published Wed Apr 03, 2019

]]>Using the renormalization-group approach, we consider an analytic theory describing the formation of a self-focusing structure of a laser beam in a plasma with relativistic nonlinearity for a given radial intensity distribution at the entrance and derive approximate analytic solutions. We study thre...

[Phys. Rev. E 99, 043201] Published Tue Apr 02, 2019

]]>Laser pulses traveling through a plasma can feature group velocities significantly differing from the speed of light in vacuum. This modifies the well-known Volkov states of an electron inside a strong laser-field from the vacuum case and, consequently, all quantum electrodynamical effects triggered...

[Phys. Rev. E 99, 033205] Published Tue Mar 26, 2019

]]>Pointwise zero velocity helicity density is shown not to prevent steady flows from acting as kinematic dynamos. We present numerical evidences that such flows can generate both small-scale magnetic fields as well as, by the magnetic $\alpha $-effect or negative eddy diffusivity mechanisms, large-scale ones....

[Phys. Rev. E 99, 033204] Published Thu Mar 14, 2019

]]>The cascaded production and dynamics of electron-positron plasma in ultimately focused laser fields of extreme intensity are studied by three-dimensional particle-in-cell simulations with the account of the relevant processes of quantum electrodynamics (QED). We show that, if the laser facility prov...

[Phys. Rev. E 99, 031201(R)] Published Wed Mar 13, 2019

]]>Raman side scatter, whereby scattered light is resonant while propagating perpendicularly to a density gradient in a plasma, was identified experimentally in planar-target experiments at the National Ignition Facility at intensities orders of magnitudes below the threshold for absolute instability. ...

[Phys. Rev. E 99, 033203] Published Wed Mar 13, 2019

]]>We present a model that describes the departure from equilibrium of the OH(A) rotational level distribution in collisional plasmas. In this model, the OH(A) rotational state densities are governed by a rate equation including: (i) a balanced rotational energy transfer process with the buffer gas spe...

[Phys. Rev. E 99, 033202] Published Thu Mar 07, 2019

]]>New facilities explore warm dense matter (WDM) at conditions with extreme densities (exceeding ten times condensed matter densities) so that electrons are degenerate even at temperatures of $10\u2013100$ eV. Whereas in the nondegenerate region correlation effects such as Debye screening are relevant for th...

[Phys. Rev. E 99, 033201] Published Mon Mar 04, 2019

]]>Separating ignition of the central hot spot from propagating burn in the surrounding dense fuel is crucial to conclusively assess the achievement of ignition in inertial confinement fusion (ICF). We show that the transition from hot spot ignition to the onset of propagating burn occurs when the alph...

[Phys. Rev. E 99, 021201(R)] Published Mon Feb 25, 2019

]]>A gyrokinetic linearized exact (not model) Landau collision operator is derived by transforming the symmetric and conservative Landau form. The formulation obtains the velocity-space flux density and preserves the operator's conservative form as the divergence of this flux density. The operator cont...

[Phys. Rev. E 99, 023201] Published Fri Feb 08, 2019

]]>Nonlinear and low-frequency solitary waves are investigated in the framework of the one-dimensional Hall-magnetohydrodynamic model with finite Larmor effects and two different closure models for the pressures. For a double adiabatic pressure model, the organization of these localized structures in t...

[Phys. Rev. E 99, 023202] Published Fri Feb 08, 2019

]]>Peculiar behavior is found in a Si cluster ion, moving with a speed of $\sim 0.22c$ ($c$: speed of light) in a solid Al plasma in the context of cluster-ion beam driven inertial confinement fusion: The Si ion, moving closely behind the forward-moving Si ion for a distance of several Å in the cluster, feels ...

[Phys. Rev. E 99, 011201(R)] Published Thu Jan 31, 2019

]]>The conditions for the amplitude instability onset in a two-dimensional Yukawa cluster system consisting of seven particles are investigated for the case of sufficiently large thermal particle displacements. We consider here an analytical approach to derive the criterion for such instability onset, ...

[Phys. Rev. E 99, 013207] Published Wed Jan 30, 2019

]]>The kinetic theory of electric fluctuations in a collisional weakly ionized dusty plasma is formulated with due regard to the grain charging dynamics. The correlation functions of electron and ion density are obtained by considering their collisions with neutrals described within the Bhatnagar-Gross...

[Phys. Rev. E 99, 013206] Published Tue Jan 22, 2019

]]>We present an analysis of a Hall-magnetohydrodynamics model of the magnetospheric plasma with finite Larmor radius effect. Through a bifurcation analysis of the resultant nonlinear system, we show that this nonlinear model does not possess a limit cycle, which rules out regular periodic oscillations...

[Phys. Rev. E 99, 013205] Published Thu Jan 17, 2019

]]>Cloaking and scattering cancellation of electromagnetic waves have attracted much attention since they allow control of rf and light waves and are of scientific interest. The analytical results demonstrated in this paper reveal that plasmonic cloaking, which is one of the schemes for scattering canc...

[Phys. Rev. E 99, 013204] Published Wed Jan 16, 2019

]]>The self-diffusion phenomenon in a two-dimensional dusty plasma at extremely strong (effective) magnetic fields is studied experimentally and by means of molecular dynamics simulations. In the experiment the high magnetic field is introduced by rotating the particle cloud and observing the particle ...

[Phys. Rev. E 99, 013203] Published Thu Jan 10, 2019

]]>The subatomic experimental exploration of physical processes on extremely short time scales has become possible by the generation of high-quality electron bunches and x-ray pulses with subfemtosecond durations. Increasing the photon energy from the x-ray to gamma-ray regime makes probing of extremel...

[Phys. Rev. E 99, 013202] Published Wed Jan 09, 2019

]]>In their Comment, Rehman and Ahmad have noted that the damping rate of Langmuir oscillations in a $q$-nonextensive electron-positron plasma is always negative and so resulting only in Landau damped oscillations and no unstable modes. As a Reply, I would like to resolve the origin of the misleading res...

[Phys. Rev. E 99, 017202] Published Fri Jan 04, 2019

]]>Saberian and Esfandyari-Kalejahi [Phys. Rev. E **87**, 053112 (2013)] have discussed Langmuir oscillations in a $q$-nonextensive electron-positron plasma. However, some of the results obtained and the conclusions drawn in this paper are not appropriate. In Fig. 3 of the above mentioned paper, the authors ...

[Phys. Rev. E 99, 017201] Published Wed Jan 02, 2019

]]>This paper presents results of x-ray Thomson scattering on a plasma in the warm dense matter regime. The experiment generates a uniform sample with a long duration in time, which represents an advance in experimental studies of this regime. The analysis also reveals shortcomings in previous theoretical approaches and shows that this experimental technique is suitable for measuring the relevant plasma conditions.

[Phys. Rev. E 98, 063206] Published Wed Dec 26, 2018

]]>We study electrostatic and phonon properties of Yukawa crystals. It is shown that in the harmonic approximation these systems which are used in the theory of dusty plasma can be described analytically by the model from the theory of neutron stars and white dwarfs. Using this approximation, we consid...

[Phys. Rev. E 98, 063205] Published Fri Dec 14, 2018

]]>The interaction of a high-power laser pulse with a thin foil can generate energetic, broadband terahertz radiation. Here, we report an experimental investigation on the influence of incident laser polarization and wavelength on the terahertz emission and maximum proton energy from the target rear su...

[Phys. Rev. E 98, 061201(R)] Published Tue Dec 11, 2018

]]>We investigate the phonon spectra of two-dimensional liquid dusty plasmas on a one-dimensional periodic substrate using numerical simulations. The propagation of the waves across the potential wells of the substrate is inhibited due to the confinement of the dust particles by the substrate minima. I...

[Phys. Rev. E 98, 063203] Published Tue Dec 11, 2018

]]>Using numerical simulations, we examine the structure and diffusion of a two-dimensional dusty plasma (2DDP) in the presence of a one-dimensional periodic substrate (1DPS) as a function of increasing substrate strength. Both the pair correlation function perpendicular to the substrate modulation and...

[Phys. Rev. E 98, 063204] Published Tue Dec 11, 2018

]]>The energy distributions of tantalum ions produced in a nanosecond laser-heated plasma at $4\times {10}^{15}\phantom{\rule{0.28em}{0ex}}\mathrm{W}/{\mathrm{cm}}^{2}$ are experimentally and theoretically investigated. They are measured far from the target with an electrostatic spectrometer and charge collectors. Shadowgraphy and interferometry are used to charact...

[Phys. Rev. E 98, 063202] Published Mon Dec 10, 2018

]]>Under liquidlike conditions, particles are found to rearrange on multiple timescales in a two-dimensional dusty plasma experiment. Our analysis is based on survival functions, which are time-series graphs of the probability that a particle's number of nearest neighbors remains unchanged. Nondefects ...

[Phys. Rev. E 98, 063201] Published Tue Dec 04, 2018

]]>