Vacuum polarization in the space-time of a scalar-tensor cosmic string

被引：3
|
作者：
Bezerra, VB [1 ]
Filho, RMT
Grebot, G
Guimaraes, MEX
机构：
[1] UFPb, Dept Fis, BR-58051970 Joao Pessoa, Paraiba, Brazil
[2] UnB, Dept Matemat, BR-70910900 Brasilia, DF, Brazil
来源：
MODERN PHYSICS LETTERS A | 2001年 / 16卷 / 24期
关键词：
D O I：
10.1142/S0217732301004662
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study the vacuum polarization effect in the space-time generated by a magnetic flux cosmic string in the framework of a scalar-tensor theory of gravity. The vacuum expectation values of the energy-momentum tensor of a conformally coupled scalar field are calculated and the dilaton's contribution to the vacuum polarization effect is shown.
引用
收藏
页码：1565 / 1571
页数：7
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