Stability of ~3He_2~4He_M and ~3He_3~4He_M L = 0,1 Clusters

摘要

We have studied the stability of mixed ~3He/~4He clusters in L = 0 and L = 1 states by the diffusion Monte Carlo method, employing the Tang-Toennies-Yiu (TTY) He-He potential. The clusters ~3He~4He_M (L = 0, S = 1/2) and ~3He_2~4He_M (L = 0, S = 0) are stable for M > 1, while to bind two ~3He in a triplet state the minimum number of ~4He is four. Considering clusters with three ~3He, ~3He_3~4He_4 is the smallest stable system in the L = 1 state, while ~3He_3~4He_8 is the smallest stable system in the L = 0 state.