论文标题
GRB 170817a的Ho红va-Lifshitz重力的限制
Constraints on Hořava-Lifshitz gravity from GRB 170817A
论文作者
论文摘要
在这项工作中，我们着重于玩具模型：（3+1） - 维二维叶lifshitz重力与各向异性电磁（EM）磁场耦合，该磁场是通过kaluza-klein减少（4+1）-Dimensionalho红va-judamenional ho的ho树ho的ho别达 - lifshitz-lifshitz gravity生成的。该模型表现出一个显着的特征，即引力和电磁波具有相同的速度。此功能使得从GRB 170817a中限制理论的参数成为可能。在这项工作中，我们使用此功能来讨论该理论中参数$β$的可能约束，通过分析lorentz 170817a的lorentz不变性侵犯效果。这是通过在此事件中分析伽马射线光子的潜在时间延迟来实现的。事实证明，它对此参数施加了严格的约束。在最理想的情况下，它给出了$ | 1- \sqrtβ| <（10^{ - 19} -10^{ - 18}）$。
In this work we focus on a toy model: (3+1)-dimensional Hořava-Lifshitz gravity coupling with an anisotropic electromagnetic (EM) field which is generated through a Kaluza-Klein reduction of a (4+1)-dimensional Hořava-Lifshitz gravity. This model exhibits a remarkable feature that it has the same velocity for both gravitational and electromagnetic waves. This feature makes it possible to restrict the parameters of the theory from GRB 170817A. In this work we use this feature to discuss possible constraints on the parameter $β$ in the theory, by analyzing the possible Lorentz invariance violation effect of the GRB 170817A. This is achieved by analyzing potential time delay of gamma-ray photons in this event. It turns out that it places a stringent constraint on this parameter. In the most ideal case, it gives $|1-\sqrtβ|<(10^{-19}-10^{-18})$.
