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The propagation of the electromagnetic field of a laser through a dense Bose gas is examined and nonlinear operator equations for the motion of the center of mass of the atoms are derived. The goal is to present a self-consistent set of…

量子物理 · 物理学 2009-10-31 K. V. Krutitsky , F. Burgbacher , J. Audretsch

In the framework of nuclear energy density functional (EDF) methods, many nuclear phenomena can be related to the deformation of intrinsic states. Their accurate modeling relies on the correct description of the change of nuclear binding…

We investigate the basic thermal, mechanical and structural properties of body centred cubic iron ($\alpha$-Fe) at several temperatures and positive loading by means of Molecular Dynamics simulations in conjunction with the embedded-atom…

材料科学 · 物理学 2017-02-17 Kostadin G. Gaminchev

The highly advanced treatment of surfaces as etching and deposition is mainly enabled by the extraordinary properties of technological plasmas. The primary factors that influence these processes are the flux and the energy of various…

等离子体物理 · 物理学 2015-05-30 Thomas Mussenbrock

We estimate the nuclear fusion rates for the transition OH-->F from the ground and excited molecular states and also consider effect of screening of electric charges of nuclei by bound electrons in the case of colliding atoms O and H. We…

核理论 · 物理学 2007-05-23 V. B. Belyaev , D. V. Naumov , F. M. Penkov

The irregularity of particle motions during quasi-static deformation is investigated using discrete element (DEM) simulations of sphere and sphere-cluster assemblies. A total of three types of interparticle movements are analyzed: relative…

软凝聚态物质 · 物理学 2018-12-20 Matthew R. Kuhn

Results on the correlations of low density classical and quantum Coulomb systems at equilibrium in three dimensions are reviewed. The exponential decay of particle correlations in the classical Coulomb system -- Debye-H\"uckel screening --…

统计力学 · 物理学 2015-06-25 David C. Brydges , Ph. A. Martin

The Debye mass m_D is computed nonperturbatively in the deconfined phase of QCD, where chromomagnetic confinement is known to be present. The latter defines m_D to be m_D=c_D\sqrt{\sigma_s}, where c_D \approx 2 and \sigma_s=\sigma_s(T) is…

高能物理 - 唯象学 · 物理学 2007-07-09 N. O. Agasian , Yu. A. Simonov

With the help of first principles calculation method based on the density functional theory we have investigated the structural, elastic, mechanical properties and Debye temperature of Fe2ScM (M = P and As) compounds under pressure up to 60…

材料科学 · 物理学 2017-03-27 Md. Lokman Ali , Md. Zahidur Rahaman

In most PIC/MCC simulations of radio frequency capacitively coupled plasmas (CCPs) several simplifications are made: (i) fast neutrals are not traced, (ii) heavy particle induced excitation and ionization are neglected, (iii) secondary…

等离子体物理 · 物理学 2015-06-23 A. Derzsi , I. Korolov , E. Schuengel , Z. Donko , J. Schulze

A self-consistent 1-D model was developed to study the effect of the electron energy distribution function (EEDF) on power deposition and plasma density profiles in a planar inductively coupled plasma (ICP) in the non-local regime (pressure…

等离子体物理 · 物理学 2016-09-08 Badri Ramamurthi , Demetre J. Economou , Igor D. Kaganovich

We analyze the effect of plasma screening on nuclear reaction rates in dense matter composed of atomic nuclei of one or two types. We perform semiclassical calculations of the Coulomb barrier penetrability taking into account a radial mean…

太阳与恒星天体物理 · 物理学 2009-08-20 A. I. Chugunov , H. E. De Witt

A complete model of helium-like line and continuum emission has been incorporated into the plasma simulation code Cloudy. All elements between He and Zn are treated, any number of levels can be considered, and radiative and collisional…

天体物理学 · 物理学 2019-08-19 R. L. Porter , G. J. Ferland

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…

等离子体物理 · 物理学 2020-02-05 Nathaniel R. Shaffer , Charles E. Starrett

We discuss the effect of a molecular Bose condensate on the energy of Fermi excitations in a trapped two-component atomic Fermi gas. The single-particle Green's functions can be approximated by the well-known BCS form, in both the BCS…

软凝聚态物质 · 物理学 2016-08-31 Y. Ohashi , A. Griffin

We summarize a series of numerical experiments of collisional dynamics in dense stellar systems such as globular clusters (GCs) and in weakly collisional plasmas using a novel simulation technique, the so-called Multi-particle collision…

Opacity is an important ingredient of the evolution of stars. The calculation of opacity coefficients is complicated by the fact that the plasma contains partially ionized heavy ions that contribute to opacity dominated by H and He. Up to…

The analytic equation of state of nonideal Coulomb plasmas consisting of pointlike ions immersed in a polarizable electron background (physics/9807042) is improved, and its applicability range is considerably extended. First, the fit of the…

天体物理学 · 物理学 2008-11-26 A. Y. Potekhin , G. Chabrier

K-line profiles emitted from a warm dense plasma environment are used for diagnostics of Ar droplet plasmas created by high energy laser pulses. Analyzing the temporally and spacially integrated spectra, we infer temperature gradients…

等离子体物理 · 物理学 2017-09-26 A Sengebusch , H Reinholz , G Röpke

We evaluate various analytical models for the electron-ion energy transfer and compare the results to data from molecular dynamics (MD) simulations. The models tested includes energy transfer via strong binary collisions, Landau-Spitzer…

等离子体物理 · 物理学 2014-03-05 J. Vorberger , D. O. Gericke