The afterglow emission from Nd:YAG-laser-produced microdroplet-tin plasma is investigated, with a focus on analyzing Stark effect phenomena and the dynamical evolution of the plasma. Time- and space-resolved optical imaging spectroscopy is performed on 11 lines from Sn i–iv ions, in the 315–425-nm w...

[Phys. Rev. E 102, 013204] Published Thu Jul 09, 2020

]]>We have investigated the effects of a smooth transition layer at the contact discontinuity on the growth of the Richtmyer-Meshkov instability (RMI) by hydrodynamic numerical simulations, and we derived an empirical condition for the suppression of the instability. The transition layer has little inf...

[Phys. Rev. E 102, 013203] Published Wed Jul 08, 2020

]]>Discretizing Maxwell's equations in Galilean (comoving) coordinates allows the derivation of a pseudospectral solver that eliminates the numerical Cherenkov instability for electromagnetic particle-in-cell simulations of relativistic plasmas flowing at a uniform velocity. Here we generalize this sol...

[Phys. Rev. E 102, 013202] Published Tue Jul 07, 2020

]]>Conservation of the magnetic moment of ions crossing a magnetohydrodynamic shock is often assumed in studies of collisionless shocks. While this approximation may be reasonable in certain cases, this article shows that magnetic moment conservation is inconsistent with the entropy increase which occurs for any combination of initial and final states.

[Phys. Rev. E 102, 013201] Published Wed Jul 01, 2020

]]>A target design for mitigating the Rayleigh-Taylor instability is proposed for use in high energy density and direct-drive inertial confinement fusion experiments. In this scheme, a thin gold membrane is offset from the main target by several-hundred microns. A strong picket on the drive beams is in...

[Phys. Rev. E 101, 063207] Published Tue Jun 30, 2020

]]>A model based on optical Bloch equations is developed to describe the interaction of femtosecond laser pulses with dielectric solids, accounting for optical-cycle-resolved electron dynamics. It includes the main physical processes at play: photoionization, impact ionization, direct and collisional l...

[Phys. Rev. E 101, 063206] Published Mon Jun 29, 2020

]]>Newton's third law—the action-reaction symmetry—can be violated for effective interbody forces in open and nonequilibrium systems that are ubiquitous in areas as diverse as complex plasmas, colloidal suspensions, active and living soft matter, and social behavior. While studying monolayer complex pl...

[Phys. Rev. E 101, 063205] Published Fri Jun 26, 2020

]]>The frictional force (stopping power) acting on a test electron moving through an ideal electron gas is calculated by taking into account electron-neutral atom collisions using the linear plasma response formalism. This allows us to elucidate how the effective Coulomb logarithm is affected by electr...

[Phys. Rev. E 101, 061202(R)] Published Fri Jun 12, 2020

]]>The propagation of a relativistic electron-positron beam in a magnetized electron-ion plasma is studied, focusing on the polarization of the radiation generated in this case. Special emphasis is laid on investigating the polarization of the generated radiation for a range of beam-plasma parameters, ...

[Phys. Rev. E 101, 063204] Published Mon Jun 08, 2020

]]>A chemical model is proposed for a dusty plasma consisting of electrons, ions, neutrals, and positively charged dust particles all being at thermodynamic equilibrium. An expression is derived for the Helmholtz free energy, which comprises the ideal part, taking into account the charge of dust partic...

[Phys. Rev. E 101, 063203] Published Fri Jun 05, 2020

]]>A central problem of turbulence theory is to produce a predictive model for turbulent fluxes. These have profound implications for virtually all aspects of the turbulence dynamics. In magnetic confinement devices, drift-wave turbulence produces anomalous fluxes via cross-correlations between fluctua...

[Phys. Rev. E 101, 061201(R)] Published Thu Jun 04, 2020

]]>The interaction of dielectric barrier discharge plasma and silicone-oil liquid droplet in a Hele-Shaw cell was investigated experimentally employing synchronized optical and electrical time-resolved measurements. Temporal development of the destabilization, stretching, and fragmentation of the plasm...

[Phys. Rev. E 101, 063201] Published Mon Jun 01, 2020

]]>A microphysics model to describe the photoionization and impact ionization processes in dielectric ablator materials like plastic has been implemented into the one-dimensional hydrodynamic code LILAC for planar and spherical targets. At present, the initial plasma formation during the early stages o...

[Phys. Rev. E 101, 063202] Published Mon Jun 01, 2020

]]>We present an in-depth analysis of an ultrafast electron trajectory type that produces attosecond electromagnetic pulses in both the reflected and forward directions during normal incidence, relativistic laser-plasma interactions. Our particle-in-cell simulation results show that for a target which ...

[Phys. Rev. E 101, 053210] Published Thu May 28, 2020

]]>Transport of particle beams in plasmas is widely employed in fundamental research, industry, and medicine. Due to the high inertia of ion beams, their transport in plasmas is usually assumed to be stable. Here we report the focusing and flapping of intense slab proton beams transporting through larg...

[Phys. Rev. E 101, 051203(R)] Published Tue May 26, 2020

]]>Magnetic nozzles are convergent-divergent applied magnetic fields which are commonly used in electric propulsion, manufacturing, and material processing industries. This paper studies the previously overlooked physics in confining the thermalized ions injected from a near-uniform inlet in the magnet...

[Phys. Rev. E 101, 053208] Published Tue May 26, 2020

]]>In this work, we studied the stopping power of deuterium-tritium (DT) plasmas mixed with impurities to the injected charged particles. Based on the Brown-Preston-Singleton model, the analytical expression for the change ratio of stopping power (denoted by $\eta )$ induced by impurities in DT plasmas is de...

[Phys. Rev. E 101, 053209] Published Tue May 26, 2020

]]>We studied parallel propagating electromagnetic waves in a magnetized quantum electron plasma of finite temperature, as an extension of our previous study on a zero temperature plasma. We obtained simple analytic dispersion relations in the long wavelength limit that included the thermal effect as c...

[Phys. Rev. E 101, 053207] Published Fri May 22, 2020

]]>Interactions of two-plasmon decay (TPD) and side-stimulated Raman scattering (SSRS) were studied using three-dimensional particle-in-cell simulations under inertial-confinement-fusion-relevant conditions for linearly and circularly polarized lasers. In the linear stage, SSRS took place under ${n}_{e}=\mathrm{0.23...}$

[Phys. Rev. E 101, 053205] Published Thu May 21, 2020

]]>Compressing and charge neutralization of the heavy-ion beam in an inertial fusion reactor are considered as pivotal processes for increasing the energy gain. For this purpose, the ion beam is usually transported through the plasma channel so that multispecies Weibel instability can grow in this syst...

[Phys. Rev. E 101, 053206] Published Thu May 21, 2020

]]>With the recent realization of kilotesla quasistatic magnetic fields, the interaction of a laser with magnetized solids enters an unexplored new regime. In particular, a circularly polarized (CP) laser pulse may propagate in a highly magnetized plasma of any high density without encountering cutoff ...

[Phys. Rev. E 101, 051202(R)] Published Wed May 20, 2020

]]>In a recent paper [Wang, Huang, and Feng, Phys. Rev. E **99**, 063206 (2019)], Langevin dynamical simulation results related to the shear modulus $G$ of a two-dimensional liquid dusty plasma were reported. The purpose of this Comment is to provide a comparison with available theoretical models to calculat...

[Phys. Rev. E 101, 057201] Published Wed May 20, 2020

]]>In the preceding Comment [Khrapak and Klumov, preceding Comment, Phys. Rev. E **101**, 057201 (2020)], a completely different method is used to calculate the shear modulus of two-dimensional Yukawa solids. Here the results of the shear modulus of two-dimensional Yukawa solids obtained in a previous work...

[Phys. Rev. E 101, 057202] Published Wed May 20, 2020

]]>We discuss the experimental and modeling results for the x-ray heating and temperature of laboratory photoionized plasmas. A method is used to extract the electron temperature based on the analysis of transmission spectroscopy data that is independent of atomic kinetics modeling. The results emphasi...

[Phys. Rev. E 101, 051201(R)] Published Mon May 18, 2020

]]>We present a new model of electron transport in warm and hot dense plasmas which combines the quantum Landau-Fokker-Planck equation with the concept of mean-force scattering. We obtain electrical and thermal conductivities across several orders of magnitude in temperature, from warm dense matter con...

[Phys. Rev. E 101, 053204] Published Mon May 18, 2020

]]>We investigate the energy-loss characteristics of an ion in warm dense matter (WDM) and dense plasmas concentrating on the influence of electronic correlations. The basis for our analysis is a recently developed *ab initio* quantum Monte Carlo– (QMC) based machine learning representation of the static...

[Phys. Rev. E 101, 053203] Published Thu May 14, 2020

]]>Three-dimensional “particle in cell” simulations show that a quasistatic magnetic field can be generated in a plasma irradiated by a linearly polarized Laguerre-Gauss beam with a nonzero orbital angular momentum (OAM). Perturbative analysis of the electron dynamics in the low intensity limit and det...

[Phys. Rev. E 101, 053202] Published Wed May 06, 2020

]]>Atom-in-jellium calculations of the Einstein frequency were used to calculate the mean displacement of an ion over a wide range of compression and temperature. Expressed as a fraction of the Wigner-Seitz radius, the displacement is a measure of the asymptotic freedom of the ion at high temperature, ...

[Phys. Rev. E 101, 053201] Published Mon May 04, 2020

]]>We carry out a numerical investigation of three-dimensional linear perturbations in a self-similar ablation wave in slab symmetry, representative of the shock transit phase of a pellet implosion in inertial confinement fusion (ICF). The physics of ablation is modeled by the equation of gas dynamics ...

[Phys. Rev. E 101, 043215] Published Thu Apr 30, 2020

]]>We derive the exact relation for the energy transfer in three-dimensional compressible two-fluid plasma turbulence. In the long-time limit, we obtain an exact law which expresses the scale-to-scale average energy flux rate in terms of two point increments of the fluid variables of each species, elec...

[Phys. Rev. E 101, 043212] Published Wed Apr 29, 2020

]]>Three-dimensionally extended dusty plasmas containing mixtures of two particle species of different size have been investigated under microgravity conditions. To distinguish the species even at small size disparities, one of the species is marked with a fluorescent dye, and a modified two-camera vid...

[Phys. Rev. E 101, 043213] Published Wed Apr 29, 2020

]]>Multibeam absolute instability thresholds for stimulated Raman scattering (SRS) and two-plasmon decay (TPD) are calculated in three dimensions for conditions relevant to direct-drive inertial confinement fusion experiments on the OMEGA laser and at the National Ignition Facility (NIF). Although mult...

[Phys. Rev. E 101, 043214] Published Wed Apr 29, 2020

]]>A shock that is continuously driven by a moving exciter will propagate at a speed that depends on the exciter speed. We obtained this dependence experimentally, in a strongly coupled dusty plasma that was prepared as a single two-dimensional layer of charged microparticles. Attaining this result req...

[Phys. Rev. E 101, 043211] Published Tue Apr 28, 2020

]]>The formation and melting of a monolayered charged dust particle crystal in a DC glow discharge argon plasma is studied. The nature of the melting or formation process is established as a first-order phase transition from the variations in the Coulomb coupling parameter, the dust temperature, the st...

[Phys. Rev. E 101, 043209] Published Mon Apr 27, 2020

]]>Ion sound waves are studied in a plasma subject to gravitational field giving rise to vertically inhomogeneous steady-state plasma conditions. Such systems are interesting by exhibiting a wave growth that is a result of energy flux conservation for pulses propagating in an inhomogeneous system. The ...

[Phys. Rev. E 101, 043210] Published Mon Apr 27, 2020

]]>In the presence of electron neutral collisions of a frequency $\left(\nu \right)$ of the order of $\nu \ge 0.5{\omega}_{p}\phantom{\rule{4pt}{0ex}}({\omega}_{p}$ is the plasma frequency), the collisional effects play an adverse role in the mechanism of terahertz (THz) radiation. The present work describes an approach for the efficient emission of THz radiation with t...

[Phys. Rev. E 101, 043207] Published Fri Apr 17, 2020

]]>The formation of high energy density matter occurs in inertial confinement fusion, astrophysical, and geophysical systems. In this context, it is important to couple as much energy as possible into a target while maintaining high density. A recent experimental campaign, using buried layer (or “sandw...

[Phys. Rev. E 101, 043208] Published Fri Apr 17, 2020

]]>In a magnetized uniform plasma, firehose instability may arise as a result of pressure anisotropy of ${P}_{\left|\right|}\phantom{\rule{0.16em}{0ex}}>\phantom{\rule{0.16em}{0ex}}{P}_{\perp}$, where ${P}_{\left|\right|}$ and ${P}_{\perp}$ are the thermal pressure parallel and perpendicular to the magnetic field, respectively. In this paper, we examine the parallel firehose instability in electron-positron p...

[Phys. Rev. E 101, 043205] Published Thu Apr 16, 2020

]]>Theoretical analysis and a large number of experiments have proved that plasma components do not satisfy Boltzmann-Gibbs statistics and can be well described by nonextensive statistical mechanics, while new plasma parameters, electron nonextensive parameters, which are introduced to describe the non...

[Phys. Rev. E 101, 043206] Published Thu Apr 16, 2020

]]>A dynamic mitigation is presented for sausage and kink instability growths of a $z$-current-driven magnetized plasma column. In this Rapid Communication we found that a wobbling motion of the $z$-current electron axis induces a phase-controlled perturbation, so that the growths of the sausage and kink i...

[Phys. Rev. E 101, 041201(R)] Published Tue Apr 14, 2020

]]>The transport and energy deposition of relativistic electron beams in transversely nonuniform plasmas are investigated with two-dimensional electromagnetic particle-in-cell simulations. For the beam with radius much larger than plasma skin depth, the current filamentation instability excited by the ...

[Phys. Rev. E 101, 043203] Published Fri Apr 10, 2020

]]>Evolution of magnetoacoustic (MA) waves in the heat-releasing plasma is analyzed. Due to the temperature and density dependence of the heating and cooling processes, the dispersion properties of MA waves in the considered medium is rather specific. The dispersion of phase velocity can be either posi...

[Phys. Rev. E 101, 043204] Published Fri Apr 10, 2020

]]>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

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