论文标题
灰色的因素和黑洞的鹰辐射$ 4D $ EINSTEIN-GAUSS BONNET重力
Grey-body factors and Hawking radiation of black holes in $4D$ Einstein-Gauss-Bonnet gravity
论文作者
论文摘要
Aoki，Gorji和Mukohyama [arxiv：2005.03859]最近提出了$（3+1）$ - 尺寸的爱因斯坦 - 加斯 - 邦纳特重力理论，该理论以理论上一致且在观察方面的可行方式打破了洛伦兹的不变性。在这里，我们计算狄拉克，电磁和重力场的灰色因子，并估计该理论中渐近平坦黑洞的鹰辐射和生命周期的强度。正耦合常数导致较小的蒸发率和黑洞的寿命较长，而负面的蒸发率会增强鹰辐射。对于较大的耦合常数值，电磁和狄拉克场的灰色因子较小。
The $(3+1)$-dimensional Einstein-Gauss-Bonnet theory of gravity which breaks the Lorentz invariance in a theoretically consistent and observationally viable way has been recently suggested by Aoki, Gorji and Mukohyama [arXiv:2005.03859]. Here we calculate grey-body factor for Dirac, electromagnetic and gravitational fields and estimate the intensity of Hawking radiation and lifetime for asymptotically flat black holes in this theory. Positive coupling constant leads to much smaller evaporation rate and longer life-time of a black hole, while the negative one enhances Hawking radiation. The grey-body factors for electromagnetic and Dirac fields are smaller for larger values of the coupling constant.
