66 citations · 146 across the 8 of their papers we have counts for
10 papers · 1 filter
Small cosmological signatures from multi-brane models
Carlo R. Contaldi, Gavin Nicholson, Horace Stoica
We analyse the signatures of brane inflation models with moduli stabilisation. These are hybrid inflation models with a non-trivial field-space metric which can induce complex traj…
Exciting gauge field and gravitons in a brane-anti-brane annihilation
A. Mazumdar, H. Stoica
In this paper we point out the inevitability of an explosive production of gauge field and gravity wave during an open string tachyon condensation in a cosmological setting. We wil…
Kaluza-Klein relics from warped reheating
Aaron Berndsen, James M. Cline, Horace Stoica
It has been suggested that after brane-antibrane inflation in a Klebanov-Strassler (KS) warped throat, metastable Kaluza-Klein (KK) excitations can be formed due to nearly-conserve…
Brane Decay and Defect Formation
Horace Stoica
Topological defects are generically expected to form in models of brane inflation. Brane-anti-brane annihilation provides a way to gracefully end inflation, and the dynamics of the…
Numerical experiments with p F- and q D-strings: the formation of (p,q) bound states
Arttu Rajantie, Mairi Sakellariadou, Horace Stoica
We investigate the behaviour of (p,q) string networks, focusing on two aspects: (1) modelling more realistic (p,q) string networks than the Z_N networks used so far and (2) investi…
Defect Formation with Bulk Fields
Guy D. Moore, Horace Stoica
It has recently been realized that brane-antibrane annihilation (a possible explanation for ending inflation) may result in defect formation, due to the dynamics of the tachyon fie…