摘要
In this paper we construct a new time-periodic solution of the vacuum Einstein's field equations, this solution possesses physical singularities, i.e., the norm of the solution's Riemann curvature tensor takes the infinity at some points. We show that this solution is intrinsically time-periodic and describes a time-periodic universe with the "time-periodic physical singularity". By calculating the Weyl scalars of this solution, we investigate new physical phenomena and analyze new singularities for this universal model.
In this paper we construct a new time-periodic solution of the vacuum Einstein＇s field equations, this solution possesses physical singularities, i.e., the norm of the solution＇s Riemann curvature tensor takes the infinity at some points. We show that this solution is intrinsically time-periodic and describes a time-periodic universe with the ＂time-periodic physical singularity＂. By calculating the Weyl scalars of this solution, we investigate new physical phenomena and analyze new singularities for this universal model.
基金
supported by National Natural Science Foundation of China (Grant No.10971190) and the Qiu-Shi Professor Fellowship from Zhejiang University,China
