摘要
A new set of exact solutions in vacuum Brans-Dicke theory is obtained,which is a two-way traversable wormhole for the coupling parameterω(ω<-2).This new set of exact solutions satisfies not only the general constraints on the shape function b(R)and the redshift functionφ(R)given by Morris and Thorne[Am.J.Phys.56(1988)395],but also the constraints on them from a trip through wormhole.It also follows that the scalar field φ plays a role of exotic mat ter violating the weak energy condition.
作者
HE Feng
LIU liao
贺锋;刘辽(Department of Physics,Xiangtan Teachersf College,Xiangtan 411100;Department of Physics,Beijing Normal University,Beijing 100875)
基金
Supported by the National Natural Science Foundation of China under Grant No.19473003.
