English
Related papers

Related papers: Ionization potential depression and optical spectr…

200 papers

We study the ionization dynamics in intense laser-droplet interaction using three-dimensional, relativistic particle-in-cell simulations. Of particular interest is the laser intensity and frequency regime for which initially transparent,…

Plasma Physics · Physics 2013-05-29 T. V. Liseykina , D. Bauer

The Mott effect describes the dissolution of bound states in a dense partially ionized plasma. It happens when the ionization potential depression, owing to effects of correlation and degeneracy, compensates the binding energy of the bound…

Plasma Physics · Physics 2019-07-24 Gerd Röpke

We present a finite-temperature study of Bopp-Podolsky electrodynamics, following electron-proton plasmas through one- and two-loop order with dimensional regularisation and hard-thermal-loop resummation. The higher-derivative operator is…

High Energy Physics - Phenomenology · Physics 2025-08-05 Prabhat Singh , Punit Kumar

We present an approach which allows the consistent treatment of bound states in the context of the dc conductivity in dense partially ionized noble gas plasmas. Besides electron-ion and electron-electron collisions, further collision…

Plasma Physics · Physics 2017-08-02 Sebastian Rosmej , Heidi Reinholz , Gerd Röpke

Aims. We calculate the plasma environment effects on the ionization potentials (IPs) and K-thresholds used in the modeling of K lines for all the ions belonging to the isonuclear sequences of abundant elements apart from oxygen and iron,…

A general formulation is developed to demonstrate that atomic autoionizing (AI) resonances are broadened and shifted significantly due to plasma effects across bound-free continua. The theoretical and computational method presented accounts…

Solar and Stellar Astrophysics · Physics 2023-01-20 Anil Pradhan

The screened ion potential in non-ideal dense quantum plasmas is investigated by invoking the Singwi-Tosi-Land-Sj\"olander approximation for the electronic local field correction at densities $r_s\lesssim 2$ and degeneracy parameters…

Plasma Physics · Physics 2018-02-09 Zh. A. Moldabekov , S. Groth , T. Dornheim , M. Bonitz , T. S. Ramazanov

The Debye shielding of a charge immersed in a flowing plasma is an old classic problem in plasma physics. It has been given renewed attention in the last two decades in view of experiments with complex plasmas, where charged dust particles…

Plasma Physics · Physics 2015-06-18 Roman Kompaneets , Alexei V. Ivlev , Vladimir Nosenko , Gregor E. Morfill

In this study, for the first time, in particular to astrophysics and fusion studies, how atomic nuclei embedded in the plasma environment are affected by plasma are systematically analysed. The related interactions in plasma environments…

Nuclear Theory · Physics 2022-02-07 Serkan Akkoyun , M. Kemal Bahar

The dynamics of nuclear reaction in plasma is a fundamental issue in many high energy density researches, such as the astrophysical reactions and the inertial confinement fusion. The effective reaction cross-sections and ion stopping power…

A simple model for the dielectric function of a completely ionized plasma with an arbitrary ionic charge, that is valid for long-wavelength high-frequency perturbations is derived using an approximate solution of a linearized Fokker-Planck…

Plasma Physics · Physics 2014-03-07 H. B. Nersisyan , M. E. Veysman , N. E. Andreev , H. H. Matevosyan

Opacity determines radiation transport through material media. In a plasma source the primary contributors to atomic opacity are bound-bound line transitions and bound-free photoionization into the continuum. We review the theoretical…

Solar and Stellar Astrophysics · Physics 2023-03-08 Anil Pradhan

The effect of autoionizing resonances in atomic systems and processes is reviewed. Theoretical framework for treating resonances in the coupled channel approximation using the R-matrix method, as well as approximations related to plasma…

High Energy Astrophysical Phenomena · Physics 2024-05-16 Anil Pradhan

We study the time evolution of the wave function of a particle bound by an attractive $\delta$-function potential when it is subjected to time dependent variations of the binding strength (parametric excitation). The simplicity of this…

Mathematical Physics · Physics 2009-10-31 Alexander Rokhlenko , Joel L. Lebowitz

We have developed a general model for determining density-dependent effective dielectronic recombination (DR) rate coefficients in order to explore finite-density effects on the ionization balance of plasmas. Our model consists of…

Atomic Physics · Physics 2015-06-15 D. Nikolić , T. W. Gorczyca , K. T. Korista , G. J. Ferland , N. R. Badnell

A crucial problem concerning a large variety of fusion devices is that the confinement due to an external magnetic field is lost above a critical density, while a widely accepted first principles explanation of such a fact is apparently…

Statistical Mechanics · Physics 2011-12-06 A. Carati , M. Zuin , A. Maiocchi , M. Marino , E. Martines , L. Galgani

In this paper, the ionization and recombination coefficients of dense semiclassical hydrogen plasma on the basis of the effective interaction potential have been investigated. For this goal the Bohr$-$Lindhard method and method phase…

Visible or near infra-red light can be manipulated to produce bursts of coherent extreme ultraviolet (XUV) or X-rays via the relativistic high-order harmonic generation process when a laser irradiates a solid plasma target. The intensity of…

Plasma Physics · Physics 2022-10-05 Shikha Bhadoria , Thomas Blackburn , Arkady Gonoskov , Mattias Marklund

For low-density plasmas, the classical limit described by the Debye-H\"uckel theory is still considered as an appropriate description even though a clear experimental proof of this paradigm is lacking due to the problems in determining the…

Mesoscale and Nanoscale Physics · Physics 2022-03-02 Heinrich Stolz , Dirk Semkat , Rico Schwartz , Julian Heckötter , Marc Aßmann , Wolf-Dietrich Kraeft , Holger Fehske , Manfred Bayer

Using a criterion proposed by Salpeter,and standard solid state physics,we have determined the Debye temperature of a solid in equilibrium with the electron gas surrounding it.The results obtained can have implications in studies of the…

Astrophysics · Physics 2007-05-23 V. Celebonovic , W. Dappen