论文标题
探测无波的非静态静态球形黑洞周围的保形不变性
Probing the conformal invariance around the nonsingular static spherical black holes with waves
论文作者
论文摘要
共形不变性可以改善或消除黑洞中的奇异性，并且可能仍然存在于接近这些黑洞的强重力状态中。 在本文中，我们试图通过调查非单向静态球形黑洞的波吸收和散射来探测这种保形不变性。 为黑洞提供了不同选择的共形参数，介绍了部分和总吸收横截面以及差分散射横截面。 尽管光子轨迹与Schwarzschild案例没有变化，因为空间是在共同相关的，但波光元件受共形参数影响。 结果，波的吸收通常随着保形参数而增加，而黑洞的阴影保持与Schwarzschild情况相同。 此外，随着共形参数的增长，散射振荡模式中的峰向较小的观察角转移，而荣耀峰的宽度则不会显示敏感的依赖性。 因此，在相同重力中，非静态静态球形黑洞的吸收和散射的独特特征可以使自己与低频状态下的Schwarzschild区分开，并与其他高频极限和荣耀峰的其他球形黑洞与其他球形黑洞区分开。
Conformal invariance can ameliorate or eliminate the singularities residing in the black holes, and may still exist in the strong gravity regimes close to these black holes. In this paper, we try to probe this conformal invariance by looking into the wave absorption and scattering by the nonsingular static spherical black holes. The partial and total absorption cross section, as well as the differential scattering cross section, are presented for black holes with different choices of conformal parameters. Although the photon trajectories are unchanged from the Schwarzschild case since the spacetimes are conformally related, the wave optics are affected by the conformal parameters. As a result, the absorption of waves generally increases with the conformal parameters, while the shadow of the black holes remains the same as the Schwarzschild case. Moreover, the peaks in the oscillatory pattern of scattering shift towards smaller observing angles as the conformal parameters grows, while the widths of the glory peaks do not show sensitive dependence. The unique signature of the wave absorption and scattering by the nonsingular static spherical black holes in conformal gravity thus can serve to distinguish themselves from the Schwarzschild in the low frequency regime, and from other spherical black holes of alternative gravities in the high frequency limit and glory peaks.
