New Brans-Dicke wormholes

被引：28
|
作者：
He, F [1 ]
Kim, SW
机构：
[1] Ewha Womans Univ, Dept Sci Educ, Seoul 120750, South Korea
[2] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China
[3] Xiang Tan Normal Univ, Dept Phys, Xiangtan 411201, Peoples R China
来源：
PHYSICAL REVIEW D | 2002年 / 65卷 / 08期
关键词：
D O I：
10.1103/PhysRevD.65.084022
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Two new classes of exact solutions in vacuum Brans-Dicke theory are obtained, each of which is a two-way traversable wormhole for the coupling parameter omega<-2 or -2<omegaless than or equal to0, respectively. Each of the two new classes of exact solutions satisfies not only the general constraints given by Morris and Thorne [Am. J. Phys. 56, 395 (1988)], as concluded earlier, but also the constraints from a trip through a wormhole. It also follows that the scalar field phi plays the role of exotic matter violating the weak energy condition.
引用
收藏
页码：840221 / 840224
页数：4
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