INTERACTIONS OF COLLECTIVE EXCITATIONS WITH VORTICES IN SUPERFLUID SYSTEMS

被引：16

作者：

DEMIRCAN, E ^{[1
]}

AO, P ^{[1
]}

NIU, Q ^{[1
]}

机构：

[1] UMEA UNIV, DEPT THEORET PHYS, S-90187 UMEA, SWEDEN

来源：

PHYSICAL REVIEW B | 1995年 / 52卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.52.476

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate the interactions of collective excitations with vortices in superfluid systms, including He4 and superconductors. The dynamical equations are obtained by the aid of the many-body wave function and the density-density correlation function. The scattering cross section of collective excitations with a vortex is calculated in the Born approximation (valid at long wavelengths), and is expressed in terms of the Feynman model spectrum (q) of the collective excitations by the simple and general formula =(/2){q/[(q)]2}cot2(/ 2), where q is the wave number of the excitation, and is the scattering angle. At short wavelengths, the classical equations of motion are derived. © 1995 The American Physical Society.

引用

页码：476 / 482

页数：7

共 29 条

[1] BERRY PHASE AND THE MAGNUS FORCE FOR A VORTEX LINE IN A SUPERCONDUCTOR [J].