Blackbody radiation shift, multipole polarizabilities, oscillator strengths, lifetimes, hyperfine constants, and excitation energies in Hg+

作者：Simmons M^*; Safronova U I; Safronova M S

来源：Physical Review A, 2011, 84(5): 052510.

DOI：10.1103/PhysRevA.84.052510

Excitation energies of the [Xe]4f(14)5d(10)ns, [Xe]4f(14)5d(10)np(j), [Xe]4f(14)5d(10)nd(j), [Xe] 4f(14)5d(10)n'f(j), and [Xe]4f(14)5d(10)n'g(j) states in Hg+ are evaluated (n <= 10, n' <= 9, and [Xe] = 1s(2)2s(2)2p(6)3s(2)3p(6)3d(10)4s(2)4p(6)4d(10)5s(2)5p(6)). First-, second-, third-, and all-order Coulomb energies and first-and second-order Coulomb-Breit energies are calculated. Reduced matrix elements, oscillator strengths, and transition rates are determined for electric-dipole transitions, including the ns (n = 6-11), np (n = 6-10), nd (n = 6-10), nf (n = 5-9), and ng (n = 5-9) states. Lifetime values are determined for all above-mentioned states. The ground state E1, E2, and E3 polarizabilities are evaluated. The hyperfine structure in Hg-199(+) and Hg-201(+) ions is investigated. The hyperfine A and B values are determined for the first low-lying levels up to n = 7. The quadratic Stark effect on hyperfine structure levels of Hg-199(+) and Hg-201(+) ground states is investigated. The calculated shift for the Hg-199(+) (F = 1, M = 0) <-> (F = 0, M = 0) transition is -0.0597(2) Hz/(kV/cm)(2), in agreement with previous theoretical result -0.060(3) Hz/(kV/cm)(2). These calculations provide a theoretical benchmark for comparison with experiment and theory and provide values of blackbody radiation shifts for microwave frequency standards with Hg-199(+) and Hg-201(+) ions.

• 出版日期2011-11-17