Ab initio relativistic many-body calculation of hyperfine splitting of ^{113}Cd^+

Details Ab initio relativistic many-body calculation of hyperfine splitting of ^{113}Cd^+ Ab initio relativistic many-body calculation of hyperfine splitting of ^{113}Cd^+

2007-07-15

arxiv.org/abs/0707.2230v2

Physics

Atomic Physics

8 pages, 1 figure

Scientific paper

10.1103/PhysRevA.77.012718

This work presents accurate ab initio determination of the hyperfine splitting for the ground state and few low-lying excited states of 113Cd+; important candidates for the frequency standard in the microwave region, using coupled-cluster theory (CC) in the relativistic framework. The calculated hyperfine splitting are well in agreement with recent experimental results. We have also carried out the lifetimes of the 5p2P1=2 and 5p2P3=2 states, which are in well agreement with recent experimental result (Moehring et al., PRA 73 023413, 2006). The roles of different electron correlation effects in the determination of these quantities are discussed and their contributions are presented in the CC terms.

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