Fetching the paper…

Reading the bibliography…

2012

Warp Features in DBI Inflation

Miranda, V, Hu, Wayne, Adshead, Peter

Original
PDF
Post on X

Understand

In Dirac-Born-Infeld inflation, changes in the sound speed that transiently break the slow roll approximation lead to features in the power spectrum.

We develop and test the generalized slow roll approximation for calculating such effects and show that it can be extended to treat order unity features.
As in slow-roll, model independent constraints on the potential of canonical inflation can be directly reinterpreted in the DBI context through this approximation.
In particular, a sharp horizon scale step in the warped brane tension can explain oscillatory features in the WMAP7 CMB power spectrum as well as features in the potential.

Warp Features in DBI Inflation · Around

Built on

C. Armendariz-Picon, T. Damour, and V. F. Mukhanov, Phys.Lett. B458
1999
Earlier work this paper cites.
J. Garriga and V. F. Mukhanov, Phys.Lett. B458
1999
Earlier work this paper cites.
E. D. Stewart, Phys. Rev. D65
2002
Earlier work this paper cites.
E. Silverstein and D. Tong, Phys.Rev. D70
2004
Earlier work this paper cites.
M. Alishahiha, E. Silverstein, and D. Tong, Phys.Rev. D70
2004
Earlier work this paper cites.
J. Choe, J.-O. Gong, and E. D. Stewart, JCAP 0407
2004
Earlier work this paper cites.
G. Hailu and S.-H. Tye, JHEP 0708
2007
Earlier work this paper cites.

Similar

R. Bean, X. Chen, G. Hailu, S.-H. Tye, and J. Xu, JCAP 0803
Original
2008
Cited alongside, same era.
C. Cheung, P. Creminelli, A. L. Fitzpatrick, J. Kaplan, and L. Senatore, JHEP 0803
Original
2008
Cited alongside, same era.
R. Bean, X. Chen, H. Peiris, and J. Xu, Phys.Rev. D77
Original
2008
Cited alongside, same era.
M. J. Mortonson, C. Dvorkin, H. V. Peiris, and W. Hu, Phys. Rev. D79
Original
2009
Cited alongside, same era.
C. Dvorkin and W. Hu, Phys. Rev. D81
Original
2010
Cited alongside, same era.

Then

H. Firouzjahi and S. Khoeini-Moghaddam, JCAP 1102
Original
2011
Later among the works it cites.
C. Dvorkin and W. Hu, Phys.Rev. D84
Original
2011
Later among the works it cites.
W. Hu, Phys.Rev. D84
Original
2011
Later among the works it cites.
E. Komatsu et al. (WMAP Collaboration), Astrophys.J.Suppl. 192
Original
2011
Later among the works it cites.
M. Park and L. Sorbo(2012), arXiv:1201.2903 [astro-ph.CO]
Original
2012
Closest in time.

Beyond the bibliography

alphaXiv searches the wider corpus for related work and actual follow-ups.

Open on alphaXiv

alphaXiv is searching for related work…

C. Dvorkin and W. Hu, Phys.Rev. D82

2010

Cited alongside, same era.

P. Adshead, C. Dvorkin, W. Hu, and E. A. Lim, Phys.Rev. D85

2012

Closest in time.