Racetrack inflation with matter fields and cosmic strings

Journal Article · Tue Jul 15 00:00:00 EDT 2008 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2008/07/018· OSTI ID:22156688

Brax, Ph ^[1]; De Bruck, C van ^[2]; Davis, A C; Davis, S C ^[3]; Jeannerot, R ^[4]; Postma, M ^[5]

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1. Institut de Physique Theorique, CEA, IPhT, F-91191 Gif-sur-Yvette (France)
2. Department of Applied Mathematics, School of Mathematics and Statistics, University of Sheffield, Houndsfield Road, Sheffield, S3 7RH (United Kingdom)
3. DAMTP, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA (United Kingdom)
4. Instituut-Lorentz for Theoretical Physics, Postbus 9506, 2300 RA Leiden (Netherlands)
5. DESY, Notkestrasse 85, 22607 Hamburg (Germany)

We consider the coupling of racetrack inflation to matter fields as realized in the D3/D7 brane system. In particular, we investigate the possibility of cosmic string formation in this system. We find that strings can form before or at the onset of racetrack inflation is possible, but they are then inflated away. Furthermore, string formation at the end of inflation is prevented by the presence of the moduli sector. As a consequence, no strings survive racetrack inflation.

• OSTI ID: 22156688
• Journal Information: Journal of Cosmology and Astroparticle Physics, Vol. 2008, Issue 07; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
D-BRANES
INFLATIONARY UNIVERSE
STRING MODELS