Fetching the paper…

Reading the bibliography…

2012

Correlating features in the primordial spectra

Achúcarro, Ana, Gong, Jinn-Ouk, Palma, Gonzalo A. et al.

Original
PDF
Post on X

Understand

Heavy fields coupled to the inflaton reduce the speed of sound in the effective theory of the adiabatic mode each time the background inflationary trajectory deviates from a geodesic.

This can result in features in the primordial spectra.
We compute the corresponding bispectrum and show that if a varying speed of sound induces features in the power spectrum, the change in the bispectrum is given by a simple formula involving the change in the power spectrum and its derivatives.
In this manner, we provide a uniquely discriminable signature of a varying sound speed for the adiabatic mode during inflation that indicates the influence of heavy fields.

Correlating features in the primordial spectra · Around

Built on

J. M. Maldacena, JHEP 0305
2004
Earlier work this paper cites.
D. Seery and J. E. Lidsey, JCAP 0506
2005
Earlier work this paper cites.
J. Garriga and V. F. Mukhanov, Phys. Lett. B 458
2007
Earlier work this paper cites.
C. Cheung, P. Creminelli, A. L. Fitzpatrick, J. Kaplan and L. Senatore, JHEP 0803
Original
2008
Earlier work this paper cites.
See for example J. Martin and C. Ringeval, Phys. Rev. D 69
Original
2009
Earlier work this paper cites.
J. Martin and C. Ringeval, JCAP 0501
Original
2010
Earlier work this paper cites.
S. Hannestad, JCAP 0404
Original
2010
Earlier work this paper cites.
For example in the context of Cascade Inflation, see A. Ashoorioon and A. Krause, hep-th/0607001 ; A. Ashoorioon, A. Krause and K. Turzynski, JCAP 0902
Original
2010
Earlier work this paper cites.
A. J. Tolley and M. Wyman, Phys. Rev. D 81
Original
2010
Earlier work this paper cites.

Similar

L. Senatore, K. M. Smith and M. Zaldarriaga, JCAP 1001
Original
2010
Cited alongside, same era.
E. Komatsu et al
Original
2011
Cited alongside, same era.
J. Hamann, S. Hannestad, M. S. Sloth and Y. Y. Y Wong, JCAP 0809
Original
2011
Cited alongside, same era.
See for example D. J. H. Chung, E. W. Kolb, A. Riotto and I. I. Tkachev, Phys. Rev. D 62
Original
2011
Cited alongside, same era.
A. Achucarro, J. -O. Gong, S. Hardeman, G. A. Palma and S. P. Patil, Phys. Rev. D 84
Original
2011
Cited alongside, same era.

Then

A. Achucarro, J. -O. Gong, S. Hardeman, G. A. Palma and S. P. Patil, JHEP 1205
Original
2012
Closest in time.
A. Achucarro, V. Atal, S. Cespedes, J. -O. Gong, G. A. Palma and S. P. Patil, Phys. Rev. D 86
Original
2012
Closest in time.
X. Gao, D. Langlois and S. Mizuno, JCAP 1210
Original
2012
Closest in time.
J. Khoury and F. Piazza, JCAP 0907
Original
2012
Closest in time.
X. Chen, R. Easther and E. A. Lim, JCAP 0706
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…

A. Achucarro, J. -O. Gong, S. Hardeman, G. A. Palma and S. P. Patil, JCAP 1101

2011

Cited alongside, same era.

R. Hlozek, J. Dunkley, G. Addison, J. W. Appel, J. R. Bond, C. S. Carvalho, S. Das and M. Devlin et al

2012

Cited alongside, same era.

See for example R. Easther, B. R. Greene, W. H. Kinney and G. Shiu, Phys. Rev. D 64

2012

Cited alongside, same era.

S. Cespedes, V. Atal and G. A. Palma, JCAP 1205

2012

Cited alongside, same era.

P. A. Abell et al

Cited in the paper.

A. Achucarro, J. -O. Gong, G. A. Palma and S. P. Patil, in preparation

Cited in the paper.

See for example J. A. Adams, B. Cresswell and R. Easther, Phys. Rev. D 64

2013

Closest in time.

C. P. Burgess, M. W. Horbatsch and S. P. Patil, JHEP 1301

2013

Closest in time.

D. Baumann and D. Green, JCAP 1109

Original

2013

Closest in time.