IR Inflation from Multiple Branes

@article{Thomas2007IRIF,
  title={IR Inflation from Multiple Branes},
  author={Steven A. Thomas and John Ward},
  journal={Physical Review D},
  year={2007},
  volume={76},
  pages={023509}
}
In this paper we examine the IR inflation scenario using the DBI action, where we have N multiple branes located near the tip of a warped geometry. At large N the solutions are similar in form to the more traditional single brane models, however we find that it is difficult to simultaneously satisfy the WMAP bounds on the scalar amplitude and the scalar spectral index. We go on to examine two new solutions where N = 2 and N = 3 respectively, which both have highly non-linear actions. The sound… 

DBI N-flation

We investigate DBI inflation using N multiple branes and show how the configuration is equivalent to a single wrapped D5-brane with flux. We then show how 1/N corrections can be implemented, and we

Non-relativistic matrix inflation

We reconsider a string theoretic inflationary model, where inflation is driven by n multiple coincident D3-branes in the finite n limit. We show that the finite n action can be continued to the limit

Chasing brane inflation in string theory

We investigate the embedding of brane–antibrane inflation into a concrete type IIB string theory compactification with all moduli fixed. Specifically, we are considering a D3-brane, whose position

Inflation from wrapped branes

We show that the use of higher dimensional wrapped branes can significantly extend the inflaton field range compared to brane inflation models which use $D3$-branes. We construct a simple

DBI N-flation

: We investigate DBI inflation using N multiple branes and show how the configuration is equivalent to a single wrapped D 5-brane with flux. We then show how 1 /N corrections can be implemented, and we

Inflation in DBI models with constant γ

Dirac–Born–Infeld scalar field theories which appear in the context of inflation in string theory in general have a field-dependent speed of sound. It is, however, possible to write down DBI models

Single-field inflation after the WMAP five-year data

Single-field models of inflation are analyzed in light of the WMAP five-year data. Assuming instantaneous reheating, we find that modular/new inflation models with small powers in the effective

Energy transfer in multi field inflation and cosmological perturbations

In cascade inflation and some other string inflation models, collisions of mobile branes with other branes or orbifold planes occur and lead to interesting cosmological signatures. The fundamental

Energy transfer in multi field inflation and cosmological perturbations

In cascade inflation and some other string inflation models, collisions of mobile branes with other branes or orbifold planes occur and lead to interesting cosmological signatures. The fundamental

Fields Annihilation and Particles Creation in DBI inflation

We consider a model of DBI inflation where two stacks of mobile branes are moving ultra relativistically in a warped throat. The stack closer to the tip of the throat is annihilated with the

References

SHOWING 1-10 OF 39 REFERENCES

JHEP 9912 (1999) 022

  • hep-th/9910053; R. C. Myers, Class. Quant. Grav 20
  • 2003

Phys

  • Rev. D 69 (2004) 065003, hep-th/0310221; M. Alishahiha, E. Silverstein and D. Tong, Phys. Rev. D 70 (2004) 123505, hep-th/0404084; M. A. Ganjali, JHEP 0509
  • 2005

JHEP 0405 (2004) 017

  • hep-th/0403123; S. Kachru, J. Pearson and H. Verlinde, JHEP 0206
  • 2002

Phys

  • Rev. D 71 (2005) 04506, hep-th/0408084; X. Chen, JHEP 0508 (2005) 045, hep-th/0501184; X. Chen, Phys. Rev. D 72
  • 2005

Phys. Rev. D

  • Phys. Rev. D
  • 2003

Grav Class. Quant. Grav Rev. Mod. Phys

  • Grav Class. Quant. Grav Rev. Mod. Phys
  • 2002

Phys. Rev. D Phys. Rev. D Phys. Rev. D Phys. Rev. D Class. Quant. Grav Phys. Rev. D Nucl. Phys. B

  • Phys. Rev. D Phys. Rev. D Phys. Rev. D Phys. Rev. D Class. Quant. Grav Phys. Rev. D Nucl. Phys. B
  • 1998

Phys

  • Rev. Lett. 97, 191304
  • 2006

hep-th/0507205; N

  • Kaloper and L. Sorbo, JCAP 0605 (2006) 016, astro-ph/0511543; R. Easter and L. McAllister, JCAP 0605 (2006) 018, hep-th/0512102; S. A. Kim and A. R. Liddle, Phys. Rev. D 74 (2006), 023513, astro-ph/0605604; Y-S. Piao, Phys. Rev. D 74 (2006) 047302, gr-ac/0606034; S. A. Kim and A. R. Liddle, Phys. Re
  • 2005

Class. Quant. Grav

  • Class. Quant. Grav
  • 1999