论文标题
汉密尔顿 - 雅各比方程和赤道圆形光子轨道的可分离性
Separability of the Hamilton-Jacobi equation and equatorial circular photon orbit in Kerr-Sen-Taub-NUT spacetime
论文作者
论文摘要
在本文中，我们显示了汉密尔顿 - 雅各比方程的添加性分离，呈现了测试颗粒的4速度，并尝试在Kerr-Sen-Taub-Nut（KSTN）中寻找异性弹性弦理论低能限制的Kerr-Sen-Taub-nut（KSTN）溶液中的赤道圆形光子轨道（ECPO）。在尝试找到ECPO的过程中，我们遇到了一个可能在KSTN黑洞的地平线之外的环奇异性。
In this paper, we show the additive separation of the Hamilton-Jacobi equation, present the 4-velocity of the test particles, and attempt to find the equatorial circular photon orbit (ECPO) in the Kerr-Sen-Taub-NUT (KSTN) solution of the low energy limit of heterotic string theory. In the process of trying to find the ECPO, we instead encounter a ring singularity that could be outside the horizon of the KSTN black hole.
