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Novel quantum states of a foreign particle (M) within a fluid 4 He cluster are proposed. The rovibrational states of M are considered to be similar to those of a particle in a box where the particle M can move nearly unimpeded in the fluid medium and the cluster surface provides the box walls. The energy levels are predicted to lie below those of the collective excitation states of the ...
The short range repulsive potential for all five homonuclear and ten heteronuclear rare gas atom dimers are calculated using a simple electron-gas density-functional method. The calculations are simplified by assuming exponential charge distributions for the interacting atoms and the additivity of undisturbed charge distributions. In these new calculations corrections are introduced to account for...
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