Superfluidity in a doped helium droplet

被引：89

作者：

Draeger, EW

Ceperley, DM

机构：

[1] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[2] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

[3] Univ Illinois, Natl Ctr Supercomp Applicat, Urbana, IL 61801 USA

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.90.065301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Path-integral Monte Carlo calculations of the superfluid density throughout He-4 droplets doped with linear impurities are presented. After deriving a local estimator for the superfluid density distribution, we find a decreased superfluid response in the cylindrically symmetric region of the first solvation layer. The helium in this region has a superfluid transition temperature similar to that of a two-dimensional helium system and may be responsible for previously unexplained experimental Q-branch measurements.

引用

页数：4

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