Vanishing of Gravitational Particle Production in the Formation of Cosmic Strings

Details Vanishing of Gravitational Particle Production in the Formation of Cosmic Strings Vanishing of Gravitational Particle Production in the Formation of Cosmic Strings

1998-03-30

arxiv.org/abs/hep-th/9803246v2

Phys.Rev.D59:045010,1999

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, Plain LaTex. Minor improvements. To appear in PRD

Scientific paper

10.1103/PhysRevD.59.045010

We consider the gravitationally induced particle production from the quantum vacuum which is defined by a free, massless and minimally coupled scalar field during the formation of a gauge cosmic string. Previous discussions of this topic estimate the power output per unit length along the string to be of the order of $10^{68}$ ergs/sec/cm in the s-channel. We find that this production may be completely suppressed. A similar result is also expected to hold for the number of produced photons.

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