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中文摘要：
以软物质准晶弹性理论为基础,研究八次对称软物质准晶的流体动力学.不同于固体准晶的元激发只有声子和相位子,除此之外,软物质准晶又引入了流体声子.将固体物理中朗道的流体理论进行推广应用到软物质准晶,得到八次软物质准晶的动力学方程.采用有限差分法得到较理想的数值解,验证了关于八次对称软物质准晶的动力学波传播特性,这与固体准晶有很大的差异.
英文摘要：
In this paper,the elastro-/hydro-dynamics of soft-matter quasicrystals with 8-fold smmetries are studied. Apart from elementary excitations phonons,phasons,the fluid phonon is introduced in the study for the hydrodynamics of the matter. By extending the hydrodynamics theory of solid quasicrystals proposed by Landau,we apply to soft-matter quasicrystals and derived the equstions of motion of sof-tmatter quasicrystals of 8-fold symmetries. The results in this paper explore some dynamic and wave propagating behaviour of soft-matter quasicrystals with 8-fold symmetry through numerical analysis,which are different from those of solid quasicrystals.
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