Wightman functions in de Sitter and anti-de Sitter spacetimes in the presence of cosmic string

Details Wightman functions in de Sitter and anti-de Sitter spacetimes in the presence of cosmic string Wightman functions in de Sitter and anti-de Sitter spacetimes in the presence of cosmic string

2012-04-26

arxiv.org/abs/1204.5973v1

Physics

High Energy Physics

High Energy Physics - Theory

Talk given in the 5th International Workshop on Astronomy and Relativistic Astrophysics (IWARA2011), Joao Pessoa, Brazil, 6-11

Scientific paper

In this paper we evaluate the Wightman functions associated with a massive quantum scalar field in de Sitter and anti-de Sitter spacetimes in the presence of a cosmic string. Having these functions we calculate the corresponding renormalized vacuum expectation values of the field squared and present the behavior of the contributions induced by the cosmic string as function of the proper distance to it for different values of the parameter which codify the presence of this linear topological defect.

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