Cosmic strings on a harmonic map and the gravitational lens effect

Journal Article · Sat Oct 15 04:00:00 EDT 1994 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.50.4791· OSTI ID:7170907

Gogberashvili, M ^[1]

---

1. Institute of Physics, Georgian Academy of Sciences, Tamarashvili 6, SU-380077 Tbilisi, Georgian Republic (Georgia)

The exact cosmic string solutions of Einstein equations in the bimetric-type theories with a background Minkowski metric are found. It is shown that the distance between two points in the space of cosmic strings is different in bimetric theories (on a harmonic map) and in general relativity. This provides a difference in time delays which in principle is testable in the gravitational lensing effect.

• OSTI ID: 7170907
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 50:8; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662110* -- General Theory of Particles & Fields-- Theory of Fields & Strings-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANALYTICAL SOLUTION
COMPOSITE MODELS
COSMOLOGICAL MODELS
EINSTEIN FIELD EQUATIONS
EQUATIONS
EXTENDED PARTICLE MODEL
FIELD EQUATIONS
GRAVITATIONAL LENSES
LENSES
MATHEMATICAL MODELS
PARTICLE MODELS
QUARK MODEL
STRING MODELS