论文标题

来自Braneworld黑洞的回声

Echoes from the braneworld black holes

论文作者

Dey, Ramit, Chakraborty, Sumanta, Afshordi, Niayesh

论文摘要

基于ADS/CFT对应于Braneworld场景的ADS/CFT对应的Randall-Sundrum模型的全息解释指出,brane上定位的黑洞是{\ IT量子校正}。从经典的$ ads_ {5} $散装动力学与重力以及四维brane上的CFT相关的事实可以更好地理解这一点。基于CFT在经典的黑洞几何形状上的背部反应,该几何形状位于木制上,预计会在地平线修改附近可能存在。这可能导致黑洞的视野变为部分反射,从而在重力波观测中引起回声信号的回声。在本文中,我们研究了这种回声的存在,在木制上的黑洞的响声阶段存在,携带\ emph {负}潮汐电荷,并建立了布局,以便将来研究Ringdown信号中较高尺寸效应。在当前仪器灵敏度水平上的回波检测可以将潮汐电荷的无量纲值限制为$ | q | \ Lessim m^2 $。

The holographic interpretation of the Randall-Sundrum model based on the adaptation of the AdS/CFT correspondence to the braneworld scenario states that the black holes localized on the brane are {\it quantum corrected}. This can be better understood from the fact that the classical $AdS_{5}$ bulk dynamics is dual to gravity coupled with CFT on the four dimensional brane. Based on the back reaction of the CFT on the classical black hole geometry, localized on the brane, it is expected that there exist possible near horizon modifications. This may result in the black hole horizon becoming partially reflective, thus giving rise to echoes in the ringdown signal in gravitational wave observations. In this paper, we investigate the existence of such echoes in the ringdown phase of a black hole localized on the brane, carrying a \emph{negative} tidal charge, and establish the layout for future investigation of higher dimensional effects in the ringdown signal. Confirmed detections of echoes at the current levels of instrumental sensitivity can constrain the dimensionless value of tidal charge to $|Q| \lesssim M^2$ .

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