论文标题
4D爱因斯坦 - 加斯 - 托网重力中的尘土倒塌
Dust collapse in 4D Einstein-Gauss-Bonnet gravity
论文作者
论文摘要
我们考虑在爱因斯坦 - 加斯 - 邦网重的最近提出的4D极限中重力崩溃。我们表明，对于由均匀灰尘制成的球体崩溃，该过程在质量上与纯爱因斯坦的重力相似。奇异性形成为崩溃的终端，并始终被困在地平线后面。然而，与爱因斯坦的理论不同，由于高斯式术语，塌陷的云以零速度达到了奇异性，并且相对于纯爱因斯坦案例，奇异性的形成时间延迟了。
We consider gravitational collapse in the recently proposed 4D limit of Einstein-Gauss-Bonnet gravity. We show that for collapse of a sphere made of homogeneous dust the process is qualitatively similar to the case of pure Einstein's gravity. The singularity forms as the endstate of collapse and it is trapped behind the horizon at all times. However, and differently from Einstein's theory, as a consequence of the Gauss-Bonnet term, the collapsing cloud reaches the singularity with zero velocity, and the time of formation of the singularity is delayed with respect to the pure Einstein case.
