Semiclassical back reaction in the formation of a straight cosmic string.
نویسندگان
چکیده
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. ∗Institut de F́ısica d’Altes Energies (IFAE)
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Back Reaction in the Formation of a Straight Cosmic String
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عنوان ژورنال:
- Physical review. D, Particles and fields
دوره 52 8 شماره
صفحات -
تاریخ انتشار 1995