Delaying the inevitable: tidal disruption in microstate geometries

被引：0

作者：

Iosif Bena

Anthony Houppe

Nicholas P. Warner

机构：

[1] Université Paris Saclay,Institut de Physique Théorique

[2] CEA,Department of Physics and Astronomy

[3] CNRS,Department of Mathematics

[4] University of Southern California,undefined

[5] University of Southern California,undefined

来源：

Journal of High Energy Physics | / 2021卷

关键词：

Black Holes in String Theory; Supergravity Models;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Microstate geometries in string theory replace the black-hole horizon with a smooth geometric “cap” at the horizon scale. In geometries constructed using superstratum technology, this cap has the somewhat surprising property that induces very large tidal deformations on infalling observers that are far away from it. We find that this large-distance amplification of the tidal effects is also present in horizonless microstate geometries constructed as bubbling solutions, but can be tamed by suitably arranging the bubbles to reduce the strength of some of the gravitational multipole moments. However, despite this taming, these tidal effects still become large at a significant distance from the microstructure. This result suggests that an observer will not fall unharmed into the structure replacing the black hole horizon.

引用