{"title":"用MGECSC势模拟稠密等离子体下氢原子的偶极子和四重振子强度","authors":"Rachna Joshi","doi":"10.1007/s00601-025-02006-7","DOIUrl":null,"url":null,"abstract":"<div><p>The dipole and quadruple Oscillator strengths for Hydrogen atom are computed under the effect of More General Exponential Cosine Screened Coulomb (MGECSC) potential which describes Debye as well as quantum plasma as its special cases. The wavefunctions are computed through numerical simulation using the accurate Numerov method. The variation of the oscillator strengths for different transitions in plasma embedded Hydrogen with respect to different parameters of the modelling potential are investigated. As per the present calculations, the dipole oscillator strengths for Debye plasma, decrease as the parameter <span>\\(\\upmu \\)</span> increases. In contrast, for quantum plasma, the dipole oscillator strength values increase as the parameters <span>\\(\\upmu \\)</span>, b, and c of the potential increase. For quadruple oscillator strengths, few deviations are observed due to combined effect of three parameters of potential.</p></div>","PeriodicalId":556,"journal":{"name":"Few-Body Systems","volume":"66 4","pages":""},"PeriodicalIF":1.8000,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Dipole and Quadruple Oscillator Strengths for Hydrogen Atom Under Dense Plasma Modelled by MGECSC Potential\",\"authors\":\"Rachna Joshi\",\"doi\":\"10.1007/s00601-025-02006-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The dipole and quadruple Oscillator strengths for Hydrogen atom are computed under the effect of More General Exponential Cosine Screened Coulomb (MGECSC) potential which describes Debye as well as quantum plasma as its special cases. The wavefunctions are computed through numerical simulation using the accurate Numerov method. The variation of the oscillator strengths for different transitions in plasma embedded Hydrogen with respect to different parameters of the modelling potential are investigated. As per the present calculations, the dipole oscillator strengths for Debye plasma, decrease as the parameter <span>\\\\(\\\\upmu \\\\)</span> increases. In contrast, for quantum plasma, the dipole oscillator strength values increase as the parameters <span>\\\\(\\\\upmu \\\\)</span>, b, and c of the potential increase. For quadruple oscillator strengths, few deviations are observed due to combined effect of three parameters of potential.</p></div>\",\"PeriodicalId\":556,\"journal\":{\"name\":\"Few-Body Systems\",\"volume\":\"66 4\",\"pages\":\"\"},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2025-09-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Few-Body Systems\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s00601-025-02006-7\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"PHYSICS, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Few-Body Systems","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s00601-025-02006-7","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
Dipole and Quadruple Oscillator Strengths for Hydrogen Atom Under Dense Plasma Modelled by MGECSC Potential
The dipole and quadruple Oscillator strengths for Hydrogen atom are computed under the effect of More General Exponential Cosine Screened Coulomb (MGECSC) potential which describes Debye as well as quantum plasma as its special cases. The wavefunctions are computed through numerical simulation using the accurate Numerov method. The variation of the oscillator strengths for different transitions in plasma embedded Hydrogen with respect to different parameters of the modelling potential are investigated. As per the present calculations, the dipole oscillator strengths for Debye plasma, decrease as the parameter \(\upmu \) increases. In contrast, for quantum plasma, the dipole oscillator strength values increase as the parameters \(\upmu \), b, and c of the potential increase. For quadruple oscillator strengths, few deviations are observed due to combined effect of three parameters of potential.
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).
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