近日，菲律宾玛普阿大学的Reggie C. Pantig与土耳其东地中海大学的Ali Ovgün合作并取得一项新进展。经过不懈努力，他们发现引力波通过光子弱场偏转所留下的印记。相关研究成果已于2024年8月15日在国际知名学术期刊《中国物理C》上发表。

本研究旨在探讨一个新颖现象，即引力波在穿越一个受特定一阶极向引力波扰动的史瓦西黑洞时产生的引力透镜效应。研究人员运用高斯-博内定理，发现了一种对接近黑洞的光线偏折具有拓扑贡献的机制。

研究人员证明，通过分析光线路径之外的区域即可确定偏折角，从而仅需依据扰动波的参数（勒让德多项式阶数l；频率σ）进行计算。该方法为引力透镜效应提供了一个独特的视角，并加深了他们对黑洞与引力波相互作用的理解。

附：英文原文

Title: Imprints of a gravitational wave through the weak field deflection of photons

Author: Reggie C. Pantig, Ali Ovgün

Issue&Volume: 2024-08-15

Abstract: In this study, we investigate the novel phenomenon of gravitational lensing experienced by gravitational waves traveling past a Schwarzschild black hole perturbed by a specific, first-order, polar gravitational wave. We apply the Gauss-Bonnet theorem, finding a topological contribution to the deflection of light rays passing near the black hole. We demonstrate that the deflection angle can be determined by analyzing a region entirely outside the path of the light ray, leading to a calculation based solely on the parameters of the perturbing wave (Legendre polynomial order, l; frequency, σ). This approach offers a unique perspective on gravitational lensing and expands our understanding of black hole interactions with gravitational waves.

DOI: 10.1088/1674-1137/ad4e25

Source: http://hepnp.ihep.ac.cn/article/doi/10.1088/1674-1137/ad4e25