Multipole response of doped He-3 drops

The multipole response of He-3(N) drops doped with very attractive impuriti es, such as a Xe atom or an SF6 molecule, has been investigated in the fram ework of the Finite-Range Density Functional Theory and the Random Phase Ap proximation. We show that volume (L=0) and surface (L=1, 2) modes become mo re fragmented, as compared with the results obtained for pure He-3(N) drops . In addition, the dipole mean energy goes smoothly to zero when N increase s, indicating that for large N values these impurities are delocalized in t he bulk of the drop. (C) 2001 American Institute of Physics.