The static dipole, quadrupole, and octupole polarizabilities of helium are calculated for the four Rydberg series $1sns{}^{1}S,$ $1sns{}^{3}S,$ $1snp{}^{1}P,$ and $1snp{}^{3}P$ with n up to 10, using variational wave functions in Hylleraas coordinates. The large-$n$ expansions for polarizabilities are presented for these series.

• Received 24 January 2000

DOI:https://doi.org/10.1103/PhysRevA.62.052502