论文标题
标量的坚果虫孔
Scalarized nutty wormholes
论文作者
论文摘要
我们在较高的曲率理论中构建具有螺母电荷的标态虫洞。在Brihaye等人最近发表的论文之后，我们考虑了Einstein-Scalar-Gauss-Bonnet和Einstein-Scalar-Chern-Simons理论。 [1]，研究了自发标量的Schwarzschild-nut溶液。通过改变耦合参数和标量电荷，我们确定标量虫洞的存在域及其对螺母电荷的依赖性。在高斯河网案例中，已知的标量虫洞[2]以消失的螺母电荷的极限达到。然而，在Chern-Simons情况下，极限是特殊的，因为随着螺母的消失，耦合恒定差异。我们专注于带有单个喉咙的标量坚果虫孔并研究其特性。所有这些标量的螺母虫孔具有关键的极角，除了存在封闭的时空曲线之外。
We construct scalarized wormholes with a NUT charge in higher curvature theories. We consider both Einstein-scalar-Gauss-Bonnet and Einstein-scalar-Chern-Simons theories, following a recent paper by Brihaye et al. [1], where spontaneously scalarised Schwarzschild-NUT solutions were studied. By varying the coupling parameter and the scalar charge we determine the domain of existence of the scalarized nutty wormholes, and their dependence on the NUT charge. In the Gauss-Bonnet case the known set of scalarized wormholes [2] is reached in the limit of vanishing NUT charge. In the Chern-Simons case, however, the limit is peculiar, since with vanishing NUT charge the coupling constant diverges. We focus on scalarized nutty wormholes with a single throat and study their properties. All these scalarized nutty wormholes feature a critical polar angle, beyond which closed timelike curves are present.
