CREATION OF A TIME-MACHINE IN (2+1)-DIMENSIONAL GRAVITY

被引：5
|
作者：
SOLENG, HH [1 ]
机构：
[1] UNIV OSLO, INST PHYS, N-0316 OSLO, NORWAY
来源：
GENERAL RELATIVITY AND GRAVITATION | 1992年 / 24卷 / 11期
关键词：
D O I：
10.1007/BF00756989
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A non-stationary model of two concentric counter-rotating layers is constructed in (2+1)-dimensional Einstein theory. It is shown that the model which satisfies both the weak and the dominant energy conditions, may evolve from a state with no closed time-like curves to a state where such curves are present in a finite region of space. No singularities are formed in the process.
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页码：1131 / 1141
页数：11
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