标题： 静态引力场引起的真空折射率的偏差 显示英文标题

标题： The Deviation of the Vacuum Refractive Index Induced by a Static Gravitational Field

摘要： 我们分析了静态引力场对真空的影响，并提出了非均匀真空的概念。 根据太阳引力场中光的偏折观测结果以及广义相对论中的相应费马原理，我们推导出了静态引力场中真空的折射率的解析表达式。 我们发现真空折射率的偏差由两部分组成：一部分是由时间膨胀效应引起的，另一部分是由长度收缩效应引起的。 作为应用，我们通过计算机编程模拟了引力透镜效应，并发现缺失的中心成像可以以一种合理的方式进行解释。 显示英文摘要

摘要： We analyzed the influence of static gravitational field on the vacuum and proposed the concept of inhomogeneous vacuum. According to the observational result of the light deflection in solar gravitational field as well as the corresponding Fermat's principle in the general relativity, we derived an analytical expression of the refractive index of vacuum in a static gravitational field. We found that the deviation of the vacuum refractive index is composed of two parts: one is caused by the time dilation effect, the other is caused by the length contraction effect. As an application, we simulated the effect of the gravitational lensing through computer programming and found that the missing central imaging could be interpreted in a reasonable way.