Scattering of Elementary Excitations at the Surface of Superfluid 4He

被引：0
|
作者：
M. Guilleumas
F. Dalfovo
I. Oberosler
L. Pitaevskii
S. Stringari
机构：
[1] Università di Trento,Dipartimento di Fisica
[2] and Istituto Nazionale Fisica della Materia,Department of Physics
[3] TECHNION,undefined
[4] Kapitza Institute for Physical Problems,undefined
来源：
Journal of Low Temperature Physics | 1998年 / 110卷
关键词：
Reflection; Evaporation; Free Surface; Density Functional Theory; Magnetic Material;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We study the scattering of atoms, rotons and phonons at the free surface of superfluid4He. We calculate the evaporation, condensation and reflection probabilities in the framework of linearized time dependent density functional theory accounting for elastic one-to-one processes. We explore the angular dependence of the scattering probabilities showing that most results are independent of the incidence angle and can be expressed in terms of a single energy dependent parameter.
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页码：449 / 454
页数：5
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