Strong gravitational field time delay for photons coupled to Weyl tensor in a Schwarzschild black hole

被引：49
|
作者：
Lu, Xu [1 ,2 ,3 ]
Yang, Feng-Wei [1 ,2 ,3 ]
Xie, Yi [1 ,2 ,3 ]
机构：
[1] Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Jiangsu, Peoples R China
[2] Shanghai Key Lab Space Nav & Posit Tech, Shanghai 200030, Peoples R China
[3] Nanjing Univ, Key Lab Modern Astron & Astrophys, Minist Educ, Nanjing 210093, Jiangsu, Peoples R China
来源：
EUROPEAN PHYSICAL JOURNAL C | 2016年 / 76卷 / 07期
基金：
中国国家自然科学基金;
关键词：
SCALE MAGNETIC-FIELDS; LIGHT PHOTONS; VACUUM POLARIZATION; HOLOGRAPHIC SUPERCONDUCTORS; ELECTROMAGNETIC-FIELDS; FASTER; GRAVITY; STAR; PROPAGATION; SPACETIMES;
D O I：
10.1140/epjc/s10052-016-4218-2
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We analyze strong gravitational field time delay for photons coupled to the Weyl tensor in a Schwarzschild black hole. By making use of the method of strong deflection limit, we find that these time delays between relativistic images are significantly affected by polarization directions of such a coupling. A practical problem about determination of the polarization direction by observations is investigated. It is found that if the first and second relativistic images can be resolved, the measurement of time delay can more effectively improve detectability of the polarization direction.
引用
收藏
页数：7
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