Back reaction in the formation of a straight cosmic string

Details Back reaction in the formation of a straight cosmic string Back reaction in the formation of a straight cosmic string

1995-05-02

arxiv.org/abs/gr-qc/9505003v1

Phys.Rev.D52:4319-4336,1995

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

29 pages, LaTeX, no figures. A postcript version can be obtained from anonymous ftp at ftp://ftp.ifae.es/preprint.ft

Scientific paper

10.1103/PhysRevD.52.4319

A simple model for the formation of a straight cosmic string, wiggly or unperturbed is considered. The gravitational field of such string is computed in the linear approximation. The vacuum expectation value of the stress tensor of a massless scalar quantum field coupled to the string gravitational field is computed to the one loop order. Finally, the back-reaction effect on the gravitational field of the string is obtained by solving perturbatively the semiclassical Einstein's equations.

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