Breit and QED Effects in Spectra of the 4s2 1S0−4s4p 3P1,1P1 Transitions in the Zn Sequence

Spectroscopic analysis of N-intrashell transitions in Rb-like to Ni-like Yb ions

“…As can be seen in the figure, the measured wavelengths are in very good agreement with the recommended value. The calculations of Hao and Liu [57], Träbert et al [59], Blundell [61], Chen and Cheng [63], and semi-empirical calculations of Curtis [67] are in excellent agreement with the recommended wavelength. The results of Vilkas and Ishikawa [58], Safronova and Safronova [62], and Blundell et al [60] are also comparable to the measured wavelength.…”

“…More effort has been devoted toward high-precision atomic structure calculations of Zn-like heavy ions than to experimental results. Recently Hao and Liu [57] reported the fully-relativistic calculations with the multiconfiguration Dirac-Fock and general matrix element (MCDFGME) program which included Breit and QED effects. Vilkas and Ishikawa [58] performed calculations within the multireference Møllr-Plesset (MR-MP) formalism; while Träbert et al [59] applied the same approach with a larger basis set.…”

Identifications of extreme ultraviolet spectra of Br-like to Ni-like neodymium ions using an electron beam ion trap

“…These wavelengths are listed in Table 1 for reference. While majority of the theoretical studies have also focused on these charge states owing to their simple structure having one-or two-valence electrons in the outer shell [30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46], some atomic systems with multi-valence electrons, e.g., belonging to Galike and Se-like isoelectronic sequences, have been previously studied [47,48]. These theoretical predictions are given in the last column of Table 1.…”

“…The last column lists the energy uncertainties derived from the wavelength uncertainties of the corresponding lines listed in table 1. 'RMBPT' and 'FAC' in the last column indicate the energies calculated by relativistic many-body perturbation theory (RMBPT) [49] and FAC [26] one or two valence electrons in the outer shell [30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46], some atomic systems with multi-valence electrons, e.g. belonging to Ga-like and Se-like isoelectronic sequences, have been previously studied [47,48].…”

“…D Derived from double-Gaussian fitting. E References: a[20]; b[30]; c[19]; d[31]; e[29]; f[32]; g[33]; h[13]; i[34]; j[35]; k[36]; l[17]; m[16]; n[37]; o[38]; p[39]; q [40]; r[14]; s[41]; t[42]; u[43]; v[44]; w[45]; x[46]; y[15]; z…”