论文标题
额外尺寸的声音：厚黑色的准模式
Sound from extra dimension: quasinormal modes of thick brane
论文作者
论文摘要
在这项工作中，我们研究了厚的brane系统的准模式。考虑到Brane度量的横向无跟踪张量扰动，我们获得了张量扰动的Kaluza-Klein模式的Schrödinger样方程。然后，我们使用Wentzel-Kramers-brillouin近似和渐近迭代方法来求解此类似Schrödinger的方程。我们还研究了初始波数据包针对厚的棕褐色的数字演变。结果表明，厚的brane模型中有一组离散的准模式。这些准标准模式显示为Brane观察者的衰减大量引力。它们是厚褐色的特征模式，可以反映厚的棕褐色的结构。
In this work, we investigate the quasinormal modes of a thick brane system. Considering the transverse-traceless tensor perturbation of the brane metric, we obtain the Schrödinger-like equation of the Kaluza-Klein modes of the tensor perturbation. Then we use the Wentzel-Kramers-Brillouin approximation and the asymptotic iteration method to solve this Schrödinger-like equation. We also study the numeric evolution of an initial wave packet against the thick brane. The results show that there is a set of discrete quasinormal modes in the thick brane model. These quasinormal modes appear as the decaying massive gravitons for a brane observer. They are characteristic modes of the thick brane and can reflect the structure of the thick brane.
