Vacuum polarization for a massless scalar field in the global monopole spacetime at finite temperature

被引:32
作者
Carvalho, FC [1 ]
de Mello, ERB [1 ]
机构
[1] Univ Fed Paraiba, Dept Fis, CCEN, BR-58051970 Joao Pessoa, Paraiba, Brazil
关键词
D O I
10.1088/0264-9381/18/9/303
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
In this paper we calculate the effects produced by the temperature in the renormalized vacuum expectation value of the square of the massless scalar field in the pointlike global monopole spacetime. In order to develop this calculation, we had to construct the Euclidean thermal Green function associated with this field in this background, We also calculate the high-temperature limit for the thermal average of the zero-zero component of the energy-momentum tenser.
引用
收藏
页码:1637 / 1649
页数:13
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