Green Function Approach to Mass Fluctuation Waves

被引:2
作者
Balakrishnan, V. [1 ]
Balakrisiman, Radha [1 ]
机构
[1] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India
关键词
D O I
10.1007/BF00654846
中图分类号
O59 [应用物理学];
学科分类号
摘要
In earlier work, a model Hamiltonian has been used to study in detail the effects of He-4 impurities in solid He-3. Starting with this Hamiltonian we use the Green function method, with a suitable decoupling scheme, to study the "mass fluctuation" waves caused by the impurities, and also to study the effect of the impurity terms in the Hamiltonian on the magnons of the system. Expressions are presented for the shifted positions of the poles, in the energy plane, corresponding to the excitations concerned.
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页码:255 / 265
页数:11
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