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We analyze the screening and bulk energy of a classical and strongly interacting plasma of color charges, a model we recently introduced for the description of a quark-gluon plasma at T=(1-3)Tc. The partition function is organized around…

核理论 · 物理学 2008-11-26 Boris A. Gelman , Edward V. Shuryak , Ismail Zahed

We show how optical spectra in dense plasmas are determined by the shift of energy levels as well as the broadening owing to collisions with the plasma particles. In lowest approximation, the interaction with the plasma particles is…

等离子体物理 · 物理学 2018-02-14 Chengliang Lin , Gerd Röpke , Heidi Reinholz , Wolf-Dietrich Kraeft

We analyze enhancement of thermonuclear fusion reactions due to strong plasma screening in dense matter using a simple electron drop model. The model assumes fusion in a potential that is screened by an effective electron cloud around…

太阳与恒星天体物理 · 物理学 2015-06-18 P. A. Kravchuk , D. G. Yakovlev

This work presents accurate {\it ab initio} investigations of various spectroscopic properties of a few Li-like ions in presence of a plasma environment within the Debye screening potential. The coupled-cluster theory in the relativistic…

原子物理 · 物理学 2013-06-05 Pradip Kumar Mondal , Narendra Nath Dutta , Gopal Dixit , Sonjoy Majumder

An ubiquitous property of plasmas is the so-called Debye shielding of the electrostatic potential. Important aspects of Debye screening concern, in particular, the investigation of non-linear charge screening effects taking place in…

等离子体物理 · 物理学 2007-05-23 D. Sarmah , M. Tessarotto , M. Salimullah

The effect of plasma environment on the atomic energy levels of He-like and Li-like Mg and Fe ions have been studied using Debye model. The equation-of-motion coupled-cluster (EOMCC) and Fock-space coupled-cluster (FSCC) formalisms in the…

原子物理 · 物理学 2017-01-04 B. K. Sahoo , Madhulita Das

The ratio of the alpha-decay widths of a bare nucleus and the related atom is calculated. Both the change of the form and thus the penetrability of the potential barrier and the effect of reflection in the classically-allowed region…

核理论 · 物理学 2012-12-04 Sergey Yu. Igashov , Yury M. Tchuvil'sky

A highly specialized two-center shell model has been developed accounting for the splitting of a deformed parent nucleus into two ellipsoidaly deformed fragments. The potential is based on deformed oscillator wells in direct correspondance…

核理论 · 物理学 2009-11-07 R. A. Gherghescu

The charge reduction effect, produced by the nonlinear Debye screening of high-Z charges occuring in strongly-coupled plasmas, is investigated. An analytic asymptotic expression is obtained for the charge reduction factor which determines…

等离子体物理 · 物理学 2009-11-11 D. Sarmah , M. Tessarotto , M. Salimullah

The electron-screening acceleration of laboratory fusion reactions at astrophysical energies is an unsolved problem of great importance to astrophysics. That effect is modeled here by considering the fusion of hydrogen-like atoms whose…

核理论 · 物理学 2009-11-06 Theodore E. Liolios

Electron-atom collisions in warm dense plasmas are crucial for astrophysics and controlled fusion research, where calculating short-range scattering matrices under screening plasma potentials is essential. While electron-neutral atom…

原子物理 · 物理学 2026-01-28 Chao Wu , Wen Hao Xia , Yong Wu , Jun Yan , Ming Li , Jian Guo Wang , Xiang Gao

We analyze the dynamics of fast electrons in plasmas containing partially ionized impurity atoms, where the screening effect of bound electrons must be included. We derive analytical expressions for the deflection and slowing-down…

等离子体物理 · 物理学 2018-01-08 Linnea Hesslow , Ola Embréus , Adam Stahl , Tim C. DuBois , Gergely Papp , Sarah L. Newton , Tünde Fülöp

Dicke superradiance has been observed in many systems and is based on constructive interferences between many scattered waves. The counterpart of this enhanced dynamics, subradiance, is a destructive interference effect leading to the…

原子物理 · 物理学 2012-03-27 Tom Bienaime , Nicola Piovella , Robin Kaiser

The charge and potential distributions for insulating particles approaching a substrate with regular insulating structures are studied by particle-in-cell numerical simulations. An elongated particle and substrate with elongated structures…

等离子体物理 · 物理学 2016-11-15 W J Miloch , S V Vladimirov

First-order statistics of scattered light is described using the representation of probability density cloud which visualizes a two-dimensional distribution for complex amplitude. The geometric parameters of the cloud are studied in detail…

天体物理仪器与方法 · 物理学 2017-08-02 Natalia Yaitskova

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…

统计力学 · 物理学 2011-12-06 A. Carati , M. Zuin , A. Maiocchi , M. Marino , E. Martines , L. Galgani

We study the impact of plasma correlation effects on nonresonant thermonuclear reactions for various stellar objects, namely in the liquid envelopes of neutron stars, and the interiors of white dwarfs, low-mass stars, and substellar…

等离子体物理 · 物理学 2013-10-14 A. Y. Potekhin , G. Chabrier

Interference terms between monopole and quadrupole Coulomb form factors that contribute to the cross-section of electron scattering from polarized nuclei are studied within the plane wave Born approximation. By experimentally exploring the…

核理论 · 物理学 2024-02-14 Pedro Sarriguren

The increasing velocity and frequency of space missions necessitate advancements in spacecraft protection technologies to ensure mission success and the safety of onboard systems and personnel. Existing shielding solutions, including…

综合物理 · 物理学 2024-07-25 Florian Neukart

The pieces of the hypernuclear strangeness violating potential due to the pseudoscalar meson exchanges are derived using methods which were successfully applied to hyperon nonleptonic decays. The estimates are tested by comparison with…

高能物理 - 唯象学 · 物理学 2016-08-15 Cesar Barbero , Franjo Krmpotić , Dubravko Horvat , Zoran Narančić , Dubravko Tadić