Effect of non zero cosmological constant on the motion of light ray

27th IUPAP Conference on Computational Physics

物理学;计算机科学

Chakraborty, Sarani^1 ; Sen, A.K.^1

Department Physics, Assam University, Silchar

788011, India^1

关键词: Cosmological constants;    Energy density;    General Relativity;    Kerr-de Sitter;    Light rays;    Schwarzschild;    Space time;    Space time geometry;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/759/1/012064/pdf
DOI  :  10.1088/1742-6596/759/1/012064

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

Cosmological constant, the value of the energy density of the vacuum of space, was introduced by Einstein as an extension of general relativity. Recent studies show that cosmological constant has a noticeable effect on the shape of space-time i.e. it will influence the path of light ray. In this study the effect of non-zero cosmological constant on the path of light ray in three different types of space-time geometry namely Schwarzschild de Sitter, Kerr de Sitter and Kerr- Newman de Sitter has been discussed.