【作者】 沈建其；

【Author】 Jian Qi Shen;Centre for Optical and Electromagnetic Research,Zijingang Campus,Zhejiang University;

【机构】 浙江大学紫金港校区光及电磁波研究中心；

【摘要】 常数真空能密度与依赖于宇宙半径尺度的Casimir真空能密度都比宇宙临界密度大很多个数量级(如几十到上百个数量级)。但是实际上其引力和宇宙学效应均未在观察宇宙学中显示。为了解决这两个谜,本文提出在引力规范理论框架内,巨密度常数真空能的能量-动量张量将在度规的三阶微分方程中以协变导数项(结果为零)呈现,故而巨密度常数真空能不再展现引力效应;为了强烈压低Casimir真空能密度,只要求宇宙极早期暴涨因子足够大,如至少为10～(39),就能使得当今的Casimir真空能密度远小于宇宙临界密度。更多还原

【Abstract】 A gravitational gauge theory,where the gravitational field equation of Einstein is a first-integral solution,can enable us to seek for a new route to the vacuum-energy cosmological constant problem.We suggest that the gravitational contribution of cosmic-scale-dependent Casimir vacuum energy could provide a new insight into the connection between the cosmic early inflation and the present observational cosmology data.Only if the early exponential inflation factor is larger than 1039 can the present Casimir vacuum energy density be negligibly small(compared with the cosmic critical density).更多还原