Vacuum polarization effects in the cosmic string background
β Scribed by Yu.A. Sitenko; N.D. Vlasii
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 155 KB
- Volume
- 57
- Category
- Article
- ISSN
- 0015-8208
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β¦ Synopsis
Abstract
A charged scalar field is quantized in the background of a cosmic string which is generalized to a (d β 2)βbrane in locally flat (d + 1)βdimensional spaceβtime. The induced vacuum current is found to circulate around the string. The current is a holomorphic function of the space dimension, decreasing exponentially with the distance from the string. The dependence of the current on the flux and tension of the string is comprehensively analyzed.
π SIMILAR VOLUMES
String cosmology models predict a cosmic background of gravitational waves produced during a period of dilatondriven inflation. I describe the background, present astrophysical and cosmological bounds on it, and discuss in some detail how it may be possible to detect it with large operating and plan