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学术报告:Application of complex coordinate rotation to configuration-interaction calculations of autoionizing levels

发表日期:2018-10-16来源:近代物理研究所放大 缩小
    报告题目:Application of complex coordinate rotation to configuration-interaction calculations of autoionizing levels

  报告人:Dr. Vladimir Zaytsev 

  Department of PhysicsSt. Petersburg State UniversityRussia 

  时间:2018101811:00 

  地点:近代物理所5号楼911会议室

  Abstract: 

   Precision knowledge of energies of autoionizing levels is highly demanded for diagnostics of hot laboratory plasmas, astrophysical and fusion research. Their energies, however, cannot be directly calculated by conventional methods such as
 coupled-cluster and configuration-interaction. Indeed, autoionization levels are embedded to the positive energy continuum and, as a result, cannot be described by square-integrable functions. Complex coordinate rotation detaches the autoionization levels 
from the continuum. Wave functions of these states, therefore, become square-integrable and can be investigated with conventional many-electron methods. Here we combine the complex scaling approach with the configuration-interaction method in order to solve 
many-electron Dirac-Coulomb-Breit equation.
 

    

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