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arXiv 2301.08321hep-thgr-qc
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M理论中黑洞周围的光行为

Light Behaviors around Black Holes in M-theory

N. Askour, A. Belhaj, H. Belmahi, M. Benali, H. El Moumni, Y. Sekhmani

摘要:

我们研究了M理论中光线在黑洞周围的偏转角和轨迹。利用Gauss-Bonnet定理,我们首先计算并检验了四维和七维AdS黑洞附近光线的偏转角,这些光线是分别由实球上的M-理论紧化在$S^7$和$S^4$上得到的.我们讨论了M理论膜数和转动参数对这种光学量的影响。然后,我们使用与$M2$和$M5$膜相关的运动方程来研究光线的轨迹。

英文摘要:

We study the deflection angle and the trajectory of the light rays around black holes in M-theory scenarios. Using the Gauss-Bonnet theorem, we first compute and examine the deflection angle of the light rays near four and seven-dimensional AdS black holes obtained from the M-theory compactifications on the real spheres on $S^7$ and $S^4$, respectively. We discuss the effect of the M-theory brane number and the rotating parameter on such an optical quantity. We then investigate the trajectories of the light rays using the equation of motion associated with $M2$ and $M5$ branes.

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