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arXiv 0704.3485gr-qc
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引力透镜的简单光学分析

A Simple Optical Analysis of Gravitational Lensing

Xing-Hao Ye, Qiang Lin

摘要:

分析了静态引力场对真空的影响,提出了非均匀真空的概念。根据广义相对论中相应的费马原理,导出了静态引力场中真空的梯度折射率。我们发现,利用这个折射率可以正确地计算光在引力场的偏转,从而可以方便地用光学方法处理引力透镜。为了说明,我们模拟了引力透镜的成像,计算了两个图像之间的时间延迟,并以传统光学方式计算了透镜质量。

英文摘要:

We analyzed the influence of static gravitational field on the vacuum and proposed the concept of inhomogeneous vacuum. According to the corresponding Fermat's principle in the general relativity, we derived a graded refractive index of vacuum in a static gravitational field. We found that the light deflection in a gravitational field can be calculated correctly with the use of this refractive index and therefore the gravitational lensing can be treated conveniently with the optical method. For illustration, we simulated the imaging of gravitational lensing, figured out the time delay between the two images and calculated the lens mass in a conventional optical way.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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