论文标题
使用GWTC-1事件的均衡性重力的参数化测试
Parametrized test of parity-violating gravity using GWTC-1 events
论文作者
论文摘要
奇异性（PV）重力最近引起了人们对几个方面的兴趣。其中之一是轴轴承耦合，以测试轴向 - 漆黑物质模型。此外，通过将Chern-Simons（CS）重力扩展到标量场的衍生物至第二阶，我们称为CNCL模型的更通用的PV重力理论〜[m。 crisostomi {\ it等人}，物理。修订版D，{\ bf 97}，044034（2018）]。该模型可以通过包括标量场和/或更高曲率项的更高衍生物来进一步扩展。在本文中，我们通过引入修饰的模型非依赖性参数化，讨论了重力部门中平等违规对二元合并引力的传播的影响。我们的参数化包括CNCL模型以及CS重力。当源二进制二进制二进制视觉方向是边缘的，而修改后的波形在面对面时，均等二进制的影响是最大的，而修改后的波形则最大。我们通过使用Ligo/处女座O1/O2目录来搜索此类修改的签名。我们发现，目录数据与一般相对论一致，并首次对各种牛顿后秩序修改的重力违反的限制。获得的CS重力的限制与以前的作品的结果一致。另一方面，我们获得的CNCL模型的约束比以前的结果更紧密，约有7个数量级。
Parity-violating (PV) gravity has recently attracted interest in several aspects. One of them is the axion-graviton coupling to test the axion-dark matter model. Moreover, by extending Chern-Simons (CS) gravity to include derivatives of a scalar field up to the second order, a more general class of PV gravity theory, which we call the CNCL model, has been proposed~[M. Crisostomi {\it et al.}, Phys. Rev. D, {\bf 97}, 044034 (2018)]. The model can be further extended by including even higher derivatives of the scalar field and/or higher curvature terms. In this paper, we discuss the effect of parity violation in the gravitational sector on the propagation of gravitational waves from binary coalescence by introducing a model-independent parametrization of modification. Our parametrization includes the CNCL model as well as CS gravity. The effect of parity violation on the gravitational waveform is maximum when the source binary orientation to our line of sight is edge-on, while the modified waveform reduces to the parity-symmetric one when the source is face-on. We perform a search for the signature of such modification by using the LIGO/Virgo O1/O2 catalog. We find that the catalog data is consistent with general relativity and obtain constraints on parity violation in gravity for various post-Newtonian order modifications for the first time. The obtained constraint on CS gravity is consistent with the results in previous works. On the other hand, the constraint on the CNCL model that we obtain is tighter than the previous results by roughly 7 orders of magnitude.
