标题： 碱金属原子的相对论多体计算：能级、超精细常数、电偶极矩阵元和静态极化率 显示英文标题

标题： Relativistic many-body calculations of energy levels, hyperfine constants, electric-dipole matrix elements and static polarizabilities for alkali-metal atoms

摘要： 移除能和钠、钾、铷和铯的最低四个$ns, np_{1/2}$和$np_{3/2}$状态的超精细常数被计算；fr 的 n=7--10 状态的移除能和 n=7 和 8 状态的超精细常数也被计算。 计算基于相对论单双（SD）近似，在该近似中，将狄拉克-哈特里-福克（DHF）波函数的单激发和双激发包括到微扰理论的所有阶数。 使用 SD 波函数，获得了移除能、电偶极矩矩阵元和静态极化率的精确值，然而，SD 波函数对于重原子的磁偶极超精细常数给出较差的结果。 为了获得重原子的超精细常数的精确值，我们在波函数中部分地包括了三重激发。 目前的计算为重新评估铯和Fr中的PNC振幅提供了基础。 显示英文摘要

摘要： Removal energies and hyperfine constants of the lowest four $ns, np_{1/2}$ and $np_{3/2}$ states in Na, K, Rb and Cs are calculated; removal energies of the n=7--10 states and hyperfine constants of the n=7 and 8 states in Fr are also calculated. The calculations are based on the relativistic single-double (SD) approximation in which single and double excitations of Dirac-Hartree-Fock (DHF) wave functions are included to all-orders in perturbation theory. Using SD wave functions, accurate values of removal energies, electric-dipole matrix elements and static polarizabilities are obtained, however, SD wave functions give poor values of magnetic-dipole hyperfine constants for heavy atoms. To obtain accurate values of hyperfine constants for heavy atoms, we include triple excitations partially in the wave functions. The present calculations provide the basis for reevaluating PNC amplitudes in Cs and Fr.