Type N Einstein space Time Machine spacetime

被引：14
作者：
Ahmed, Faizuddin [1 ]
机构：
[1] Hindustani Kendriya Vidyalaya, Dinesh Ojah Rd, Gauhati 781005, India
来源：
ANNALS OF PHYSICS | 2017年 / 382卷
关键词：
Vacuum spacetime; Closed timelike curves; Misner space; Cosmological constant; MOVING COSMIC STRINGS; CHRONOLOGY PROTECTION; CAUSALITY VIOLATION; NAKED SINGULARITIES; GRAVITATIONAL-FIELD; ASYMPTOTICALLY FLAT; QUANTIZED-FIELDS; WARP DRIVE; CURVES; VACUUM;
D O I：
10.1016/j.aop.2017.04.012
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We present an Einstein space axially symmetry spacetime admitting closed timelike curves (CTCs) which appear after a certain instant of time, i.e., a time machine spacetime. The spacetime is a four-dimensional generalization of flat Misner space in curved spacetime, free-from curvature divergences and belongs to type N in the Petrov classification. The spacetime admits a non-expanding, non-twisting, and shear-free null geodesic congruence. (C) 2017 Elsevier Inc. All rights reserved.
引用
收藏
页码：127 / 135
页数：9
相关论文
共 91 条
[21]  
Chandrasekhar S., 1998, International series of monographs on physics
[22]  
Clarke C. J. S., 1986, Topological properties and global structure of spacetime
[23]   GLOBALLY NONCAUSAL SPACE-TIMES .2. NAKED SINGULARITIES AND CURVATURE CONDITIONS [J].
CLARKE, CJS ;
DEFELICE, F .
GENERAL RELATIVITY AND GRAVITATION, 1984, 16 (02) :139-148
[24]   Causality violating geodesics in Bonnor's rotating dust metric [J].
Collas, P ;
Klein, D .
GENERAL RELATIVITY AND GRAVITATION, 2004, 36 (11) :2549-2557
[25]   Naked singularities, cosmic time machines and impulsive events [J].
De Felice, F. .
NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA B-BASIC TOPICS IN PHYSICS, 2007, 122 (05) :481-488
[26]   Cosmic Time Machines: the Causality Issue [J].
de Felice, Fernando .
TM 2012 - THE TIME MACHINE FACTORY [UNSPEAKABLE, SPEAKABLE] ON TIME TRAVEL IN TURIN, 2013, 58
[27]  
deFelice F, 1995, LECT NOTES PHYS, V455, P99
[28]  
Dietz J., 2011, P 6 INT M LOR GEOM F
[29]   BILLIARD BALLS IN WORMHOLE SPACETIMES WITH CLOSED TIME-LIKE CURVES - CLASSICAL-THEORY [J].
ECHEVERRIA, F ;
KLINKHAMMER, G ;
THORNE, KS .
PHYSICAL REVIEW D, 1991, 44 (04) :1077-1099
[30]   Warp drive and causality [J].
Everett, AE .
PHYSICAL REVIEW D, 1996, 53 (12) :7365-7368
12345678910