Review of weak cosmic censorship conjecture in black hole with particle absorption

In this review, we briefly introduce particle absorption as an approach for investigating the weak cosmic censorship conjecture with regard to Kerr-(anti-)de Sitter black holes as the simplest example. The conjecture can be tested by determining whether the horizon of a black hole is stable under a perturbation. Here, we consider the perturbation from an ingoing particle to the black hole. Through particle absorption, we can demonstrate the first order of changes in a black hole. Hence, this analysis provides the most important term in the changes. Furthermore, the changes in black holes are consistent with the laws of thermodynamics.