Cosmic string production towards the end of brane inflation

By Saswat Sarangi, S. Tye. 2002

540 citations recorded by the source corpus.

Abstract Towards the end of the brane inflationary epoch in the brane world, cosmic strings (but not texture, domain walls or monopoles) are copiously produced during brane collision. These cosmic strings are Dp-branes with (p−1) dimensions compactified. We elaborate on this prediction of the superstring theory description of the brane world. Using the data on the temperature anisotropy in the cosmic microwave background, we estimate the cosmic string tension μ to be around Gμ≃10−7. This in turn implies that the anisotropy in the cosmic microwave background comes mostly from inflation, but with a component (of order 10%) from cosmic strings. This cosmic string effect should also be observable in gravitational wave detectors and maybe even pulsar timing measurements.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/2cd2896efe050ab6f2e4d31bc9111945fa29e04e

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. Andrei Linde
2. R. Kallosh
3. G. Hobbs
4. F. Quevedo
5. Liam McAllister
6. C. Burgess
7. R. Manchester
8. A. Sesana

In Nuclear and High Energy Physics

1. Andrei Linde
2. R. Kallosh
3. F. Quevedo
4. Liam McAllister
5. C. Burgess
6. D. Baumann
7. E. Silverstein
8. Eran Palti

Citations in the corpus

• Cosmological evolution of cosmic string loops (2005, background): “Recently, cosmic strings have been of particular interest since it was pointed out that Fundamental and Dirichlet strings formed at the end of brane inflation could also play a cosmic string-like role in cosmology [6]–[8].”
• Racetrack Inflation (2004, background): “In addition, in brane inflation scenario the tachyon potential can give rise to topological defects such as cosmic strings [7, 13, 65] which may have important observational implications [65, 66].”
• Collisions of cosmic F- and D-strings (2004, background): “These can be produced after inflation [2-7], and in some models they are stable or at least metastable on cosmic time scales [8, 9].”
• European Pulsar Timing Array Limits On An Isotropic Stochastic Gravitational-Wave Background (2015, background): “…property of supersymmetric hybrid inflation scenarios (Jeannerot et al. 2003), whereas the creation of their superstring theory counterparts, usually referred to as cosmic superstrings, are also a natural by-product of brane inflation scenarios (e.g. Sarangi & Tye 2002; Jones, Stoica & Tye 2003).”