Lumps in the throat

Abstract

We study classical lump solutions in a warped throat where brane inflation takes place. Some of the solitonic or lump solutions that we study here are the (p,q) cosmic strings and their junctions, cosmic necklaces and semi-local strings and generic semi-local defects. We show how various wrapping modes of D3-branes may be used to study all these defects in one interpolating set-up. Our construction allows us to study (p,q)-string junctions in curved backgrounds and in the presence of non-trivial RR fluxes. We extend the junction construction to allow for the possibility of cosmic necklaces, and show how these new lump solutions form a consistent picture in the inflationary brane models. We also give a generic construction of semi-local defects in these backgrounds, and argue that our construction encompasses all possible constructions of semi-local defects with any global symmetries. The cosmological implications of these configurations are briefly studied.

JHEP.cls, 31 pages, 5 .eps figures; v2: some comments and references added; v3: some typos corrected and a reference added. Final version to appear in JHEP

References in corpus (13)

• Upper bounds on the low-frequency stochastic gravitational wave background from pulsar timing observations: current limits and future prospects
• Fitting CMB data with cosmic strings and inflation
• Constraints on string networks with junctions
• The (p,q) String Tension in a Warped Deformed Conifold
• Cosmic strings reborn?
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• Gauge-Gravity Dualities, Dipoles and New Non-Kahler Manifolds
• On Metastable Branes and a New Type of Magnetic Monopole
• Non-Abelian (p,q) Strings in the Warped Deformed Conifold
• Dipole-Deformed Bound States and Heterotic Kodaira Surfaces
• Open String Attractors
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Cited by in corpus (12)

• Cosmic microwave anisotropies from BPS semilocal strings
• On the Collision of Cosmic Superstrings
• Update of D3/D7-Brane Inflation on K3 x T^2/Z_2
• Evolution of local and global monopole networks
• A Study of Structure Formation and Reheating in the D3/D7 Brane Inflation Model
• Lensing and CMB Anisotropies by Cosmic Strings at a Junction
• Gravitational Radiation by Cosmic Strings in a Junction
• Energy Radiation by Cosmic Superstrings in Brane Inflation
• Zipping and Unzipping of Cosmic String Loops in Collision
• Quaternionic Kahler Manifolds, Constrained Instantons and the Magic Square: I
• Evolution of Hybrid Defect Networks
• Exact gravitational lensing by cosmic strings with junctions