Radiative lifetimes of Rydberg 6pnd J=2 states of Pb I by multichannel quantum defect theory
Dai Zhen-Wen (戴振文)ab, Jiang Hong-Mei (蒋红玫)a, Sun Gui-Juan (孙桂娟)ab, Jiang Zhan-Kui (蒋占魁)abc
a College of Physics, Jilin University, Changchun 130023, China; b Key Laboratory of Coherent Light, Atomic and Molecular Spectroscopy, Ministry of Education of China, Changchun 130023, China; c College of Photoelectronic Information, Yantai University, Yantai 264005, China
Abstract Energy levels of the odd-parity 6pnd J=2 Rydberg states of Pb I are analysed by the multichannel quantum defect theory (MQDT) in the frame of a five-channel three-limit calculation model. With optimal MQDT parameters, channel admixture coefficients are obtained and used to calculate the theoretical lifetimes of the levels by comparing to the previously measured lifetimes. The predicted lifetimes for higher-lying Rydberg states are given and discussed. These predicted lifetimes are very different from those obtained by the four-channel two-limit model previously used, which means that introduction of the additional interacting channel is important for studying the 6pnd J=2 Rydberg states of Pb I.
Received: 05 November 2003
Revised: 14 December 2003
Accepted manuscript online:
(Potential energy surfaces for excited electronic states)
Fund: Project supported by the National Natural Science Foundation of China (Grant No 19774026).
Cite this article:
Dai Zhen-Wen (戴振文), Jiang Hong-Mei (蒋红玫), Sun Gui-Juan (孙桂娟), Jiang Zhan-Kui (蒋占魁) Radiative lifetimes of Rydberg 6pnd J=2 states of Pb I by multichannel quantum defect theory 2004 Chinese Physics 13 845
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
