摘要
最近的观测表明在早期宇宙精细结构常数 α=e2 /(4 πh-c)是变化的 .精细结构常数 α的改变可以从不同的方面理解 ,可能是由于电荷的改变 ,也可能是光速的改变 ,或者两者同时改变引起的 .本文从含有变光速的度规出发考虑了宇宙的演化并给出了修正的弗里德曼方程 .
Recent observations suggest that the fine structure constant α=e 2/(4πh c ) varies in the early Universe. Changes in α can be interpreted in different ways, which may be due to a variable electric charge, or a variable light velocity, or combination of the two. We start from the metric containing a varying speed of light to investigate the cosmological evolution and give the modified Friedmann equations.
出处
《南开大学学报(自然科学版)》
CAS
CSCD
北大核心
2003年第1期18-21,共4页
Acta Scientiarum Naturalium Universitatis Nankaiensis
基金
Supported by Ministry of Science and Technology of China (NK-BRSF G 1 9990 75 3 )
EducationMinistry Ph.D Foundation