ROTON-VORTEX INTERACTIONS IN SUPERFLUID-HELIUM

被引：7

作者：

FERRELL, RA ^{[1
]}

KYUNG, BS ^{[1
]}

机构：

[1] UNIV MARYLAND,DEPT PHYS,COLLEGE PK,MD 20742

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.67.1003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

From a new mathematical identity and by using the fractional difference between the momentum of a roton and the momentum at the bottom of the roton minimum as a small expansion parameter, a first-order perturbation treatment of the roton-vortex interaction is developed. The resulting analytic expressions for the distribution of transverse momentum transfer, in terms of elliptic integrals, are shown to be in excellent agreement with recent computer-simulation results of Samuels and Donnelly and are convenient for computing the total momentum transfer.

引用

页码：1003 / 1006

页数：4

共 9 条

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