Racetrack Inflation

@inproceedings{BlancoPillado2004RacetrackI,
  title={Racetrack Inflation},
  author={J. Blanco-Pillado and C. Burgess and J. Cline and C. Escoda and M. G{\'o}mez-Reino and R. Kallosh and A. Linde and F. Quevedo},
  year={2004}
}
We develop a model of eternal topological inflation using a racetrack potential within the context of type IIB string theory with KKLT volume stabilization. The inflaton field is the imaginary part of the Kähler structure modulus, which is an axion-like field in the 4D effective field theory. This model does not require moving branes, and in this sense it is simpler than other models of string theory inflation. Contrary to single-exponential models, the structure of the potential in this… Expand

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References

SHOWING 1-10 OF 102 REFERENCES
Towards inflation in string theory
We investigate the embedding of brane inflation into stable compactifications of string theory. At first sight a warped compactification geometry seems to produce a naturally flat inflaton potential,Expand
Modular cosmology.
TLDR
It is shown that string theory has two generic types of domain walls which could be the seeds for inflation, and it is argued that modular physics provides a very robust model of inflation. Expand
De Sitter vacua in string theory
We outline the construction of metastable de Sitter vacua of type IIB string theory. Our starting point is highly warped IIB compactifications with nontrivial NS and RR three-form fluxes. ByExpand
An inflationary model in string theory
We construct a model of inflation in string theory after carefully taking into account moduli stabilization. The setting is a warped compactification of type IIB string theory in the presence of D3-Expand
Brane-antibrane inflation in orbifold and orientifold models
We analyse the cosmological implications of brane-antibrane systems in string-theoretic orbifold and orientifold models. In a class of realistic models, consistency conditions require branes andExpand
Irrational axions as a solution of the strong CP problem in an eternal universe
Abstract We exhibit a novel solution of the strong CP problem, which does not involve any massless particles. The low energy effective lagrangian of our model involves a discrete space-timeExpand
Brane Inflation
We present a novel inflationary scenario in theories with low scale (TeV) quantum gravity, in which the standard model particles are localized on the branes whereas gravity propagates in the bulk ofExpand
Implementing quadratic supergravity inflation
Abstract We study inflation driven by a slow-rolling inflaton field, characterised by a quadratic potential, and incorporating radiative corrections within the context of supergravity. In this modelExpand
Inflation in realistic D-brane models
We find successful models of D-brane/anti-brane inflation within a string context. We work within the GKP-LT class of type IIB string vacua for which many moduli are stabilized through fluxes, asExpand
Braneworld inflation
We discuss various realizations of the four dimensional braneworld inflation in warped geometries of string theory. In all models the inflaton field is represented by a Dp probe brane scalarExpand
...
1
2
3
4
5
...