Abstract
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.
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