Fig. 7.The static electric dipole longitudinal polarizabilityazz andazz;diff for the LiH molecule embedded in (a) harmonic confining potential (b) helium nanotubes (c) carbon
nanotubes. Theazz of the isolated LiH molecule is equal to 25.06 au. The value ofazz;diff is calculated as follows: azz;diff ¼azzðAB@ðn;nÞNTÞazzððn;nÞNTÞ, where NT denotes
helium and carbon nanotubes for panels b and c respectively.