A Causality Preserving Evolution of a Pair of Strings

被引：2
|
作者：
Krasnikov, Serguei [1 ]
机构：
[1] Cent Astron Observ Pulkovo, St Petersburg 196140, Russia
来源：
UNIVERSE | 2022年 / 8卷 / 12期
关键词：
causality; gott pair; flat spacetime; COSMIC STRINGS; TIME;
D O I：
10.3390/universe8120640
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
As follows from Gott's discovery, a pair of straight string-like singularities 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.
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页数：6
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