米尔恩模型

米尔恩模型是英国天文学家米尔恩（英語：Milne）于1935年提出的狭义相对论性的宇宙模型。[1]该模型服从宇宙学原理，在数学上等效于弗里德曼-罗伯逊-沃尔克模型在零能量密度极限下的近似，因此也叫空宇宙模型。米尔恩模型和林德勒时空（英语：Rindler space）（对平直闵可夫斯基时空的简单再参量化（英语：Parametrization））相似。

由于米尔恩模型的零能量密度性和最大负空间曲率性，它和目前的宇宙学观测相矛盾。目前的观测表明宇宙的密度参数为一，曲率为零（平直）。

参考文献

  1. ^ 愛德華·亞瑟·米爾恩, Relativity, Gravitation and World Structure, 牛津大学出版社, 1935.


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