论文标题
虫洞时空中的准模式与阴影半径之间的对应关系
Correspondence between quasinormal modes and the shadow radius in a wormhole spacetime
论文作者
论文摘要
在本文中，我们研究了虫洞空间中准模式（QNM）的真实部分（QNM）和阴影半径之间的对应关系。首先，我们在静态和球形对称的虫洞空间中考虑上述对应关系，然后通过考虑具有特定红移功能的不同虫洞模型来探索该对应关系。为此，我们将其概括为旋转虫洞时空，并从赤道平面查看时计算旋转虫洞的典型阴影半径。我们认为，由于旋转并取决于特定模型，典型的阴影半径可以增加或减小，并且存在反射点。最后，我们讨论一个虫洞是否由于阴影而模仿黑洞。鉴于EHT数据，我们发现银河中心M87中虫洞半径的上和下限。
In this paper we study the correspondence between the real part of quasinormal modes (QNMs) and the shadow radius in a wormhole spacetime. Firstly we consider the above correspondence in a static and spherically symmetric wormhole spacetime and then explore this correspondence numerically by considering different wormhole models having specific redshift functions. To this end, we generalize this correspondence to the rotation wormhole spacetime and calculate the typical shadow radius of the rotating wormhole when viewed from the equatorial plane. We argue that due to the rotation and depending on the specific model, the typical shadow radius can increase or decrease and a reflecting point exists. Finally, we discuss whether a wormhole can mimic the black hole due to it's shadow. In the light of the EHT data, we find the upper and lower limits of the wormhole throat radius in the galactic center M87.
