English
Related papers

Related papers: MAICRM: A general model for rapid simulation of ho…

200 papers

We have developed and implemented a new quantum molecular dynamics approximation that allows fast and accurate simulations of dense plasmas from cold to hot conditions. The method is based on a carefully designed orbital-free implementation…

Plasma Physics · Physics 2015-06-22 Travis Sjostrom , Jerome Daligault

We describe the equation of state (EoS) of a warm ion plasma as obtained by performing microscopic many-body simulations using Molecular Dynamics computational techniques. Using the cold one-component plasma (OCP) composition in the Neutron…

High Energy Astrophysical Phenomena · Physics 2026-04-22 David Barba-González , Conrado Albertus , M. Ángeles Pérez-García

The ion populations most frequently adopted for diagnostics in collisional plasmas are derived from the density independent, coronal approximation. In higher density, lower temperature conditions, ionisation rates are enhanced once…

Solar and Stellar Astrophysics · Physics 2020-07-22 R. P. Dufresne , G. Del Zanna , N. R. Badnell

Measurements of Ion velocity distributions are one of basic goals of space plasma studies. There is variety of ion and electron spectrometers (e.g. Wuest et al, 2007, Young et al., 2007, Zurbuchen and Gershman, 2016, Vaisberg et al, 2016).…

Space Physics · Physics 2019-07-19 Oleg Vaisberg , Sergey Shuvalov

We propose an efficient mechanism to heat a plasma by an intense microwave field solving the equation of ion motion in a wave field and a constant magnetic field in a large coupling regime. The mechanism does not relies explicitly on…

Plasma Physics · Physics 2007-05-23 Marco Frasca

The laser interaction with an electron-positron-ion mixed plasma is studied, from the perspective of the associated high-order harmonic generation. For an idealized mixed plasma which is assumed with a sharp plasma-vacuum interface and…

Plasma Physics · Physics 2021-01-20 W. L. Zhang , T. Grismayer , K. M. Schoeffler , R. A. Fonseca , L. O. Silva

We present and test an approximate method for the semiclassical calculation of vibrational spectra. The approach is based on the mixed time-averaging semiclassical initial value representation method, which is simplified to a form that…

Chemical Physics · Physics 2018-03-22 Max Buchholz , Frank Grossmann , Michele Ceotto

Spectra of various particle species have been calculated with the Quantum Molecular Dynamics (QMD) model for very central collisions of Au+Au. They are compatible with the idea of a fully stopped thermal source which exhibits a transversal…

Nuclear Theory · Physics 2009-10-28 Jens Konopka , Horst Stoecker , Walter Greiner

The asymmetrically mounted flat plasma actuator is studied using a self-consistent 2-DIM fluid model at atmospheric pressure. The computational model use the drift-diffusion approximation and a simple plasma phenomenological kinetic model.…

Plasma Physics · Physics 2019-05-10 Mario J. Pinheiro , Alexandre A. Martins

Ion pickup at the outer planets' active moons is a fundamental plasma process in which newly ionized particles from moon exospheres interact with the ambient corotating plasma and are accelerated to match the background flow. Spacecraft…

Space Physics · Physics 2026-04-14 Xin An , Miranda Chang , Hao Cao , Vassilis Angelopoulos , Anton Artemyev

Ideal MHD provides an accurate description of low-frequency Alfv\'en waves in fully ionized plasmas. However, higher frequency waves in many plasmas of the solar atmosphere cannot be correctly described by ideal MHD and a more accurate…

Solar and Stellar Astrophysics · Physics 2016-12-07 David Martínez-Gómez , Roberto Soler , Jaume Terradas

We formulate a simple harmonic mean-field model with N+1 particles and analyse the relaxation processes following a jump of one of these particles. Either the particle can jump back (single-particle route) or the other N particles adjust…

Condensed Matter · Physics 2009-11-10 Magnus Kunow , Andreas Heuer

Equation of state for partially ionized carbon at temperatures T > ~ 10^5 K is calculated in a wide range of densities, using the method of free energy minimization in the framework of the chemical picture of plasmas. The free energy model…

Plasma Physics · Physics 2007-05-23 A. Y. Potekhin , G. Massacrier , G. Chabrier

The kinetic Boltzmann equation is used to model the non-equilibrium ionization phase that initiates the evolution of atomic clusters irradiated with single pulses of intense vacuum ultraviolet radiation. The duration of the pulses is < 50…

Plasma Physics · Physics 2009-11-13 B. Ziaja , H. Wabnitz , E. Weckert , T. Moeller

We use a Monte Carlo simulation to calculate the spectra of mildly relativistic thermal plasmas in pair balance. We use the exact integral expression for the electron-positron thermal annihilation spectrum, and provide accurate expressions…

Astrophysics · Physics 2009-10-22 J. G. Skibo , C. D. Dermer , R. Ramaty , J. M. McKinley

A criterion to define a pure pair-ion (PI) plasma is presented. It is suggested that the lighter elements (like H and He) are more suitable to produce PI plasmas. The observation of ion acoustic wave (IAW) in recent experiments with…

Plasma Physics · Physics 2011-06-09 Hamid Saleem

The initial mass function (IMF) is a key ingredient in many studies of galaxy formation and evolution. Although the IMF is often assumed to be universal, there is continuing evidence that it is not universal. Spectroscopic studies that…

Astrophysics of Galaxies · Physics 2017-11-21 M. Dries , S. C. Trager , L. V. E. Koopmans , G. Popping , R. S. Somerville

A new code called VAAQP (Variational Average-Atom in Quantum Plasmas) is reported. The model as well as main results of previous studies are briefly recalled. The code is based on a new fully variational model of dense plasmas at…

Plasma Physics · Physics 2016-09-07 R. Piron , T. Blenski , B. Cichocki

A new combination of first principle molecular dynamics (MD) simulations with a rate equation model presented in the preceding paper (paper I) is applied to analyze in detail the scattering of argon atoms from a platinum (111) surface. The…

Plasma Physics · Physics 2018-09-10 A Filinov , M Bonitz , D Loffhagen

The out-of-equilibrium mean-field dynamics of a model for wave-particle interaction is investigated. Such a model can be regarded as a general formulation for all those applications where the complex interplay between particles and fields…

Plasma Physics · Physics 2015-03-13 Pierre de Buyl , Duccio Fanelli , Romain Bachelard , Giovanni De Ninno
‹ Prev 1 4 5 6 7 8 10 Next ›