论文标题
维护一对弦的进化的因果关系
A causality preserving evolution of a pair of strings
论文作者
论文摘要
如Gott所示，一对直的宇宙字符串在相反的方向上移动，当它们具有合适的速度和冲击参数时，会产生封闭的时代曲线。 我在本文中认为，总是有一个不太持久的替代方法：宇宙可能更喜欢产生某种（令人惊讶的简单且绝对温和的）奇点。
As shown by Gott, a pair of straight cosmic strings moving in opposite directions, when they have suitable speed and impact parameter, produce closed timelike curves. I argue in this paper that there always is a not-so-frightening alternative: the Universe may prefer to produce a certain (surprisingly simple and absolutely mild) singularity instead.
