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主题:物理學/本日推薦/50

一个无限的静态闵可夫斯基宇宙的彭罗斯图

理论物理学中，彭罗斯图是用于描述时空中不同两点所发生事件的因果律的二维示意图，因英国牛津大学物理学家罗杰·彭罗斯爵士而命名。彭罗斯图是闵可夫斯基图（垂直轴表示时间，水平轴表示空间，45度斜线表示光的世界线）的广义相对论推广，而最大区别是彭罗斯图上的度规和时空中的真实度规能够局部地共形等价，即能够通过共形变换使全部的时空流形转换到彭罗斯图的有限区域中去。对于球对称的时空，彭罗斯图上的每一点代表一个二维球...

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主题:物理學/本日推薦/50
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