Investigation of the Photoionization Process of Highly Charged Ions Under Non-ideal Classical Plasma Conditions

IF 1.7 4区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Few-Body Systems Pub Date : 2023-08-17 DOI:10.1007/s00601-023-01853-6

Zhan-Bin Chen

引用次数: 0

Abstract

In this manuscript, we suggest a relativistic distorted wave approach for the prediction of structural properties and photoionization cross sections of highly charged ions in a non-ideal classical plasma (NICP) environment. The pseudopotential, obtained from a sequential solution of the Bogolyubov chain equations, is used to describe screened interactions in the plasma. We solve the Dirac equation to obtain wave functions and energies. Detailed calculations are carried out for the photoionization of the highly ionized H-like S\(^{15+}\) ions for an illustrative purpose. The NICP effects on the energies, transition rates, ionization potentials, and photoionization cross sections are investigated. Comparing our results with other available experimental and theoretical data, we find satisfactory agreement. Apart from its fundamental importance, the present study has implications for a range of fields, including astrophysics, nuclear fusion and laboratory plasma experiments.

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非理想经典等离子体条件下高电荷离子光离过程的研究

在这篇论文中，我们提出了一种相对论畸变波方法来预测非理想经典等离子体(NICP)环境中高电荷离子的结构性质和光离截面。伪势，由波戈留波夫链方程的顺序解得到，用来描述等离子体中筛选的相互作用。我们解狄拉克方程得到波函数和能量。为了说明目的，对高度电离的类h S \(^{15+}\)离子的光电离进行了详细的计算。研究了NICP对能量、跃迁速率、电离势和光电离截面的影响。将我们的结果与其他现有的实验和理论数据进行比较，我们发现了令人满意的一致性。除了它的基础重要性之外，目前的研究对包括天体物理学、核聚变和实验室等离子体实验在内的一系列领域都有影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Few-Body Systems 物理-物理：综合

CiteScore

2.90

自引率

18.80%

发文量

审稿时长

6-12 weeks

期刊介绍： The journal Few-Body Systems presents original research work – experimental, theoretical and computational – investigating the behavior of any classical or quantum system consisting of a small number of well-defined constituent structures. The focus is on the research methods, properties, and results characteristic of few-body systems. Examples of few-body systems range from few-quark states, light nuclear and hadronic systems; few-electron atomic systems and small molecules; and specific systems in condensed matter and surface physics (such as quantum dots and highly correlated trapped systems), up to and including large-scale celestial structures. Systems for which an equivalent one-body description is available or can be designed, and large systems for which specific many-body methods are needed are outside the scope of the journal. The journal is devoted to the publication of all aspects of few-body systems research and applications. While concentrating on few-body systems well-suited to rigorous solutions, the journal also encourages interdisciplinary contributions that foster common approaches and insights, introduce and benchmark the use of novel tools (e.g. machine learning) and develop relevant applications (e.g. few-body aspects in quantum technologies).