论文标题
4D爱因斯坦 - 加斯 - 骨网重力:无质量颗粒和平面自旋0波的吸收
4D Einstein-Gauss-Bonnet gravity: Massless particles and absorption of planar spin-0 waves
论文作者
论文摘要
我们研究了撞击球形对称黑洞的平面标量无质量波的吸收横截面,这是新型4D Einstein-Gauss-Bonnet重力理论的解决方案。除了黑洞的质量外,溶液还取决于高斯 - 骨网常数耦合。使用部分波的方法,我们表明吸收横截面取决于高斯 - 骨网耦合常数。我们的数值结果与低频和高频近似(包括所谓的SINC近似值)表示了极好的一致性。
We investigate the absorption cross section of planar scalar massless waves impinging on spherically symmetric black holes which are solutions of the novel 4D Einstein-Gauss-Bonnet theory of gravity. Besides the mass of the black hole, the solution depends also on the Gauss-Bonnet constant coupling. Using the partial waves approach, we show that the absorption cross section depends on the Gauss-Bonnet coupling constant. Our numerical results present excellent agreement with the low- and high- frequency approximations, including the so-called sinc approximation.