论文标题
正规化4D充电的Einstein-Gauss-Bonnet De-Sitter黑洞的不稳定性
Instability of regularized 4D charged Einstein-Gauss-Bonnet de-Sitter black holes
论文作者
论文摘要
我们研究了带电标量扰动下的正规化4D带电的Einstein-Gauss-Bonnet De-Sitter黑洞的不稳定。不稳定的模式满足了超级条件，但并非所有满足超级条件的模式都是不稳定的。当宇宙常数很小并且黑洞电荷不大时，就会发生不稳定性。当黑洞电荷和宇宙常数都小时，高斯河网耦合常数使不稳定的黑洞更加不稳定，并且当黑洞电荷较大时，稳定的黑洞更稳定。
We studied the instability of the regularized 4D charged Einstein-Gauss-Bonnet de-Sitter black holes under charged scalar perturbations. The unstable modes satisfy the superradiant condition, but not all modes satisfying the superradiant condition are unstable. The instability occurs when the cosmological constant is small and the black hole charge is not too large. The Gauss-Bonnet coupling constant makes the unstable black hole more unstable when both the black hole charge and cosmological constant are small, and makes the stable black hole more stable when the black hole charge is large.
