• DOI:10.1088/1126-6708/2007/04/093
• Corpus ID: 3094746

Lumps in the throat

@article{Dasgupta2007LumpsIT,
  title={Lumps in the throat},
  author={Keshav Dasgupta and Hassan Firouzjahi and Rhiannon Gwyn},
  journal={Journal of High Energy Physics},
  year={2007},
  volume={2007},
  pages={093-093}
}

• K. Dasgupta, H. Firouzjahi, R. Gwyn
• Published 23 February 2007
• Mathematics
• Journal of High Energy Physics

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.