论文标题
赤道Kerr公制中的不对称光弯曲
Asymmetric Light Bending in the Equatorial Kerr Metric
论文作者
论文摘要
观察质量弯曲的弯曲（现在称为引力镜头）是确立一般相对论成为现代物理学支柱之一的关键。在过去的几十年中，人们对使用重力透镜来测试超出弱挠度极限的一般相对性的兴趣越来越大。黑洞和中子星产生了此类测试所需的强力场。对于旋转的紧凑型物体，前列腺和逆行光子轨迹之间的区别变得很重要。在本文中，我们探讨了在这种情况下解释弯曲角度时出现的微妙之处，并解决了文献中看似矛盾的结果的起源。我们认为不能精确量化的类比呈现出混乱的根源。
The observation of the bending of light by mass, now known as gravitational lensing, was key in establishing general relativity as one of the pillars of modern physics. In the past couple of decades, there has been increasing interest in using gravitational lensing to test general relativity beyond the weak deflection limit. Black holes and neutron stars produce the strong gravitational fields needed for such tests. For a rotating compact object, the distinction between prograde and retrograde photon trajectories becomes important. In this paper, we explore subtleties that arise in interpreting the bending angle in this context and address the origin of seemingly contradictory results in the literature. We argue that analogies that cannot be precisely quantified present a source of confusion.
