Dynamic dipole polarizabilities for a lithium isoelectronic series in their ground and two first doublet excited states
Résumé
A time-dependent gauge-invariant variational method (TDGI) has been used to calculate the length, mixed and velocity dipole polarirability of the lithium isoelectronic series LiI, BeII, BIII, and CIV in their ground (22S) and excited (22P and 32S) states. The results we have obtained are compared with previous experimental (LiI) and theoretical (LiI,BeII,BIII,CIV) data available in the literature. The variation of the polarizabilities versus imaginary frequencies have been investigated and figures displaying the behavior of the spherical components αLL, of their polarizability are given. © 1998 American Institute of Physics.