Calculations on the hyperfine constants of the ground states for lithium-like system

In this paper a relativistic many-body perturbation calculation is performed to calculate the hyperfine constants of the ground states for lithium-like isoelectronic sequence. Zeroth-order hyperfine constants are calculated with Dirac--Fock wavefunctions, and the finite basis sets of the Dirac--Fock equations are constructed by B splines. With the finite basis sets, the core polarization and the correlation effect are evaluated.     

锂原子同位素位移的计算(英文)

本文应用Grasp92程序包计算了~(5,7)LiI的2~2P_(3/2)到2~2S_(1/2)和2~2P_(1/2)到2~2S_(1/2)跃迁的同位素位移.2~2P_(3/2)到2~2S_(1/2)跃迁的同位素位移为10307 MHz,2~2P_(1/2)到2~2S_(1/2)跃迁的同位素位移为10207 MHz.这些理论结果和实验是相符合的.     

硼离子同位素位移的计算

应用Grasp92 程序包,计算了11,10B2+的22P3/2 →22S1/2 跃迁和22P1/2 →22S1/2 跃迁的同位素位移.22P3/2 →22S1/2 迁的同位素位移为29828 MHz,22P3/2 →22S1/2 跃迁的同位素位移为29840 MHz.这些理论结果与最新的实验结果是相符合的.     

DYNAMICAL BEHAVIOUR OF THE SUPERCURRENT IN MESOSCOPIC JOSEPHSON JUNCTIONS

In this paper we use a numerical method to study the quantum effect of dynamical localization on the supercurrent in a mesoscopic Josephson junction driven by a periodically external electromagnetic field. We find that the charge is localized effectively when the ratio of the field magnitude and the field frequency equal some critical values, and in these cases the amplitude of the oscillation of the supercurrent will remain constant.     

硼离子同位素位移的计算

应用Grasp92 程序包,计算了11,10B2+的 跃迁和 跃迁的同位素位移。 跃迁的同位素位移为29828MHz, 跃迁的同位素位移为29840MHz。这些理论结果与最新的实验结果是相符合的。     

Energies and Auger widths of the triply excited states of He-

Some triply excited states of He^- ion are studied using the saddle-point complex-rotation method. The energies and Auger widths of these resonances are calculated with the relativistic corrections and mass polarization taken into account. The total Auger width is obtained by coupling the important open channels and summing over the other channels. These results are in good agreement with other theoretical and experimental data in the literature.     

铍原子的能级和超精细结构的研究

采用多组态相互作用方法及Rayleigh Ritz变分法 ,并考虑相对论修正、质量极化效应等 ,获得了铍原子低激发态 1s2 2s2p3 Po和 1s2 2p2 3 P高精度的相对论能量 .同时还计算了铍原子超精细结构常数 ,与其他理论和实验结果符合得很好. The Rayleigh-Ritz variational method is used with a multiconfiguration-interaction function and restricted variation method to obtain the relativistic energies of 1s 22s2p 3P o and 1s 22p 2 3Pin beryllium, including the mass polarization and relativistic corrections. Hyperfine structure is also studied to compared with theoretical and experiment data in the literature.