论文标题
可行的Horndeski重力的新的时间依赖性解决方案
New time-dependent solutions of viable Horndeski gravity
论文作者
论文摘要
我们通过与标量场源和正宇宙常数的爱因斯坦方程的溶液畸形来生成可行Horndeski重力的新球形和时间依赖性解。他们描述了嵌入在渐近的FLRW空间中的动力学对象,并包含明显的范围和有限的半径奇异性,这些象征性以特殊的方式演变而来,显然在爱因斯坦和“旧”标量尺寸的重力中遇到。
We generate new spherical and time-dependent solutions of viable Horndeski gravity by disforming a solution of the Einstein equations with scalar field source and positive cosmological constant. They describe dynamical objects embedded in asymptotically FLRW spacetimes and contain apparent horizons and a finite radius singularity that evolve in time in peculiar ways apparently not encountered before in Einstein and "old" scalar-tensor gravity.