论文标题
在重力波瞬态目录GWTC-1中，共同搜索各向异性双折射
Combined search for anisotropic birefringence in the gravitational-wave transient catalog GWTC-1
论文作者
论文摘要
引力波（GWS）的发现提供了一个前所未有的竞技场来检验一般相对论，包括重力洛伦兹不变性违规（GLIV）。在GWS的传播中，通用的GLIV导致各向异性，分散和双折射。 GW事件特别限制了各向异性双折射。 Kostelecký和Mewes（2016）对GW150914进行了初步分析。我们改进了它们的方法并系统地扩展到整个GW瞬态目录GWTC-1。这是对时空各向异性Lorentzian结构的首次全局分析，该结构具有GWS的目录，其中多个事件对于打破GLIV参数之间的退化至关重要。由于没有异常的传播，我们在非最小程度的重力中获得了34个GLIV系数的新限制，该系数超过了先前的限制，而$ \ sim 10^2 $ - $ 10^5 $。
The discovery of gravitational waves (GWs) provides an unprecedented arena to test general relativity, including the gravitational Lorentz invariance violation (gLIV). In the propagation of GWs, a generic gLIV leads to anisotropy, dispersion, and birefringence. GW events constrain the anisotropic birefringence particularly well. Kostelecký and Mewes (2016) performed a preliminary analysis for GW150914. We improve their method and extend the analysis systematically to the whole GW transient catalog, GWTC-1. This is the first global analysis of the spacetime anisotropic Lorentzian structure with a catalog of GWs, where multiple events are crucial in breaking the degeneracy among gLIV parameters. With the absence of abnormal propagation, we obtain new limits on 34 coefficients for gLIV in the nonminimal gravity that surpass previous limits by $\sim 10^2$-$10^5$.
