论文标题
Horndeski重力的极端宇宙黑洞和反蒸发方案
Extremal cosmological black holes in Horndeski gravity and the anti-evaporation regime
论文作者
论文摘要
在最普遍的二阶标量调整理论（所谓的Horndeski重力）的框架中，分析了极端宇宙学的黑洞。这样的极端黑洞是施瓦茨柴尔兹德·德·保姆黑洞的特殊情况，当黑洞地平线和宇宙学重合时，就会出现。这样的度量是由有效宇宙常数的特定值引起的，被称为NARIAI时空。当考虑了Horndeski Lagrangian及其稳定性时，研究了这种类型的解决方案的存在，并研究了所谓的抗蒸发方案。与其他框架相反，在考虑线性秩序扰动时，Horndeski Lagrangian的某些情况下，地平线的半径仍然稳定。
Extremal cosmological black holes are analysed in the framework of the most general second order scalar-tensor theory, the~so-called Horndeski gravity. Such~extremal black holes are a particular case of Schwarzschild-De Sitter black holes that arises when the black hole horizon and the cosmological one coincide. Such~metric is induced by a particular value of the effective cosmological constant and is known as Nariai spacetime. The~existence of this type of solutions is studied when considering the Horndeski Lagrangian and its stability is analysed, where the so-called anti-evaporation regime is studied. Contrary to other frameworks, the~radius of the horizon remains stable for some cases of the Horndeski Lagrangian when considering perturbations at linear order.
