MICROSCOPIC CALCULATION OF COLLECTIVE EXCITATIONS IN HE-4 CLUSTERS

被引:56
作者
CHIN, SA [1 ]
KROTSCHECK, E [1 ]
机构
[1] TEXAS A&M UNIV SYST, DEPT PHYS, COLLEGE STN, TX 77843 USA
关键词
D O I
10.1103/PhysRevLett.65.2658
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We compute the ground-state structure and collective-excitation energies of He4 droplets at zero temperature. The collective excitations are described by a generalized Feynman theory with inputs of exact one- and two-body densities sampled from a second-order diffusion Monte Carlo algorithm. The monopole transition density shows a pronounced shell structure not accountable by simple Jastrow-type variational trial functions. © 1990 The American Physical Society.
引用
收藏
页码:2658 / 2661
页数:4
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