Assisted inflation via tachyon condensation

By Anupam Mazumdar, Sudhakar Panda, A. P'erez-Lorenzana. 2001

253 citations recorded by the source corpus.

In this paper we propose a new mechanism of inflating the Universe with non-BPS D4-branes which decay into stable D3-branes via tachyon condensation. In a single brane scenario the tachyon potential is very steep and unable to support inflation. However, if the universe lives in a stack of branes produced by a set of noninteracting unstable -branes, then the associated set of tachyons may drive inflation along our 3 spatial dimensions. After tachyon condensation the Universe is imagined to be filled with a set of parallel stable D3-branes. We study the scalar density perturbations and reheating within this setup.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/2cbc6a2b7f644cab99aeb4e10d9504972c476565

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. M. Fairbairn
2. M. Tytgat
3. Thomas W. Grimm
4. Eran Palti
5. Paul Koerber
6. M. Graña
7. J. Louis
8. Tom Rudelius

In Nuclear and High Energy Physics

1. M. Fairbairn
2. M. Tytgat
3. Thomas W. Grimm
4. Eran Palti
5. T. Weigand
6. M. Cvetič
7. Paul Koerber
8. Denis Klevers

Citations in the corpus

• Axion inflation in type II string theory (2007, background): “iments. Recent attempts to do that can be found, for example, in refs. [ 14 , 15, 16, 17, 18].”
• Inflation from a tachyon fluid (2002, background): “) If one insists on a tachyon mass ∼ 1/ls, the only alternative without entering the strong coupling regime is to increase the energy density, for instance by increasing the number of branes, in the spirit of [7] where the potential arises from the combined tachyonic potential of a number of brane/a”