论文标题

自我塑造膜的动态不稳定性

Dynamical Instability of Self-Gravitating Membranes

论文作者

Yang, Huan, Bonga, Beatrice, Pan, Zhen

论文摘要

我们表明,对于一系列具有高波数的扭曲模式不稳定性,具有平面压力和表面密度具有相同符号的通用相对论膜是不稳定的。我们还研究了带有膜的常见外来紧凑物体的不稳定性标准,例如膜,广告气泡和薄壳虫洞。例如,满足弱能量条件的静态是动态不稳定的。薄层黑洞模仿只有在具有正压和负面密度(例如虫洞)的情况下才能稳定,反之亦然。

We show that a generic relativistic membrane with in-plane pressure and surface density having the same sign is unstable with respect to a series of warping mode instabilities with high wave numbers. We also examine the criteria of instability for commonly studied exotic compact objects with membranes, such as gravastars, AdS bubbles and thin-shell wormholes. For example, a gravastar which satisfies the weak energy condition turns out to be dynamically unstable. A thin-layer black hole mimicker is stable only if it has positive pressure and negative surface density (such as a wormhole), or vice versa.

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