运用线性系统的无穷级微扰论研究了表面和多层(AB)界面系统的声子态。

The phonon states of surface and multi-film (AB) interface systems have been studied by using the infinite order perturbation theory for linear systems.

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通过引入双声子相干态，本文研究了耗散量子隧道系统中耦合对声子态的影响。

In this paper, a two-phonon coherent state has been introduced to investigate the influence of coupling with a quantum tunneling system on phonon states.

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我们计算了声子态密度曲线，并与均匀合金的情况及不考虑力常数无序的情况作了比较。

The densities of the phonon states have been calculated and compared with those in the case of the homogeneous alloys and in the case without considering the force-constant disorder.

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