Vanishing of Gravitational Particle Production in the Formation of Cosmic Strings

Abstract

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.

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

References in corpus (1)

• The Number of Particles Released in Gauge Cosmic String Formation

Cited by in corpus (2)

• Ground State Energy of Massive Scalar Field in the Background of Finite Thickness Cosmic String
• Transition Radiation and the Origin of Sonoluminescence