报告题目：Application of complex coordinate rotation to configuration-interaction calculations of autoionizing levels

　　报告人：Dr. Vladimir Zaytsev 

　　Department of Physics，St. Petersburg State University，Russia 

　　时间：2018年10月18日11:00 

　　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.