论文标题
关于$ 4D $ -IENSTEIN-GAUSS-BONNET黑洞的因果结构
On causal structure of $4D$-Einstein-Gauss-Bonnet black hole
论文作者
论文摘要
最近提出的有效运动方程式的4D $ -EINSTEIN-GAUSS-BONNET GREATITY接受了一种静态的黑洞解决方案，它具有像Rissner-Nordström充电的黑洞一样，两个地平线，而不是Schwarzschild Black Hole。这意味着中心奇异性是及时的，而不是距离型。尽管应该指出的是，在$ d \ geq5 $中，该解决方案总是像Schwarzshild解决方案一样接收一个视野。在定义地平线的方程式中，重新固定的高斯 - 骨网耦合常数似乎是一种新的“重力电荷”，具有排斥作用，除了事件地平线外，还会引起cauchy horizon。因此，它从根本上改变了黑洞的因果结构。
The recently proposed effective equation of motion for the $4D$- Einstein-Gauss-Bonnet gravity admits a static black hole solution that has, like the Rissner-Nordström charged black hole, two horizons instead of one for the Schwarzschild black hole. This means that the central singularity is timelike instead of spacelike. It should though be noted that in $D\geq5$, the solution always admits only one horizon like the Schwarzshild solution. In the equation defining the horizon, the rescaled Gauss-Bonnet coupling constant appears as a new 'gravitational charge' with a repulsive effect to cause in addition to event horizon a Cauchy horizon. Thus it radically alters the causal structure of the black hole.
