The precise measurement of the fine structure and radiative transition properties of highly charged ions(HCI)is essential for testing fundamental physical models,including strong-field quantum electrodynamics(QED)effects,electron correlation effects,relativistic effects,and nuclear effects.These measurements also provide critical atomic physics parameters for astrophysics and fusion plasma physics.Compared with the extensively studied hydrogen-like and lithium-like ion systems,boron-like ions exhibit significant contributions in terms of relativistic and QED effects in their fine structure forbidden transitions.High-precision experimental measurements and theoretical calculations of these systems provide important avenues for further testing fundamental physical models in multi-electron systems.Additionally,boron-like ions are considered promising candidates for HCI optical clocks.This paper presents the latest advancements in experimental and theoretical research on the ground state 2P3/2-2P1/2 transition in boron-like ions,and summarizes the current understanding of their fine and hyperfine structures.It also discusses a proposed experimental setup for measuring the hyperfine splitting of boron-like ions by using an electron beam ion trap combined with high-resolution spectroscopy.This proposal aims to provide a reference for future experimental research on the hyperfine splitting of boron-like ions,to test the QED effects with higher precision,extract the radius of nuclear magnetization distribution,and validate relevant nuclear structure models.
关键词
高电荷态离子/超精细结构/量子电动力学/高电荷态离子光钟
Key words
highly charged ion/hyperfine structure/quantum electrodynamics/highly charged ion optical clock
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