Fetching the paper…

Reading the bibliography…

Primordial non-Gaussianity from G-inflation · Around

2011

Primordial non-Gaussianity from G-inflation

Kobayashi, Tsutomu, Yamaguchi, Masahide, Yokoyama, Jun'ichi

Original
PDF
Post on X

Understand

We present a comprehensive study of primordial fluctuations generated from G-inflation, in which the inflaton Lagrangian is of the form $K(\phi, X)-G(\phi, X)\Box\phi$ with $X=-(\partial\phi)^2/2$.

The Lagrangian still gives rise to second-order gravitational and scalar field equations, and thus offers a more generic class of single-field inflation than ever studied, with a richer phenomenology.
We compute the power spectrum and the bispectrum, and clarify how the non-Gaussian amplitude depends upon parameters such as the sound speed.
In so doing we try to keep as great generality as possible, allowing for non slow-roll and deviation from the exact scale-invariance.

Built on

C. Deffayet, G. Esposito-Farese and A. Vikman, Phys. Rev. D 79
Original
1967
Earlier work this paper cites.
A. A. Starobinsky, JETP Lett. 30
1981
Earlier work this paper cites.
C. Armendariz-Picon, T. Damour and V. F. Mukhanov, Phys. Lett. B 458
1999
Earlier work this paper cites.
J. Garriga and V. F. Mukhanov, Phys. Lett. B 458
1999
Earlier work this paper cites.
A. D. Linde, V. F. Mukhanov, Phys. Rev. D56
2001
Earlier work this paper cites.
J. M. Maldacena, JHEP 0305
2003
Earlier work this paper cites.
M. Alishahiha, E. Silverstein and D. Tong, Phys. Rev. D 70
2004
Earlier work this paper cites.
D. Seery and J. E. Lidsey, JCAP 0506
2005
Earlier work this paper cites.

Similar

T. Kobayashi and T. Tanaka, Phys. Rev. D 71
2005
Cited alongside, same era.
R. Kimura, K. Yamamoto, [arXiv:1011.2006 [astro-ph.CO]]
Original
2006
Cited alongside, same era.
P. Creminelli, M. A. Luty, A. Nicolis and L. Senatore, JHEP 0612
2006
Cited alongside, same era.
X. Chen, M. -x. Huang, S. Kachru et al
2007
Cited alongside, same era.
C. Cheung, P. Creminelli, A. L. Fitzpatrick, J. Kaplan, L. Senatore, JHEP 0803
Original
2008
Cited alongside, same era.
A. Nicolis, R. Rattazzi and E. Trincherini, Phys. Rev. D 79
Original

Then

T. Kobayashi, M. Yamaguchi and J. Yokoyama, Phys. Rev. Lett. 105
Original
2010
Later among the works it cites.
N. Chow and J. Khoury, Phys. Rev. D 80
Original
2010
Later among the works it cites.
P. Creminelli, A. Nicolis, E. Trincherini, JCAP 1011
Original
2010
Later among the works it cites.
C. de Rham, A. J. Tolley, JCAP 1005
Original
2010
Later among the works it cites.
S. Mizuno and K. Koyama, Phys. Rev. D 82
Original
2010
Later among the works it cites.

Beyond the bibliography

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

Open on alphaXiv

alphaXiv is searching for related work…

2009

Cited alongside, same era.

J. Khoury, F. Piazza, JCAP 0907

2009

Cited alongside, same era.

C. Deffayet, O. Pujolas, I. Sawicki et al

2010

Cited alongside, same era.

D. Larson et al

Cited in the paper.

[Planck Collaboration], arXiv:astro-ph/0604069

Cited in the paper.

K. Kamada, T. Kobayashi, M. Yamaguchi and J. Yokoyama, arXiv:1012.4238 [astro-ph.CO]

Cited in the paper.

K. Van Acoleyen and J. Van Doorsselaere, arXiv:1102.0487 [gr-qc]

Cited in the paper.

K. A. Olive, Phys. Rept. 190

2011

Closest in time.

C. Burrage, C. de Rham, D. Seery, A. J. Tolley, JCAP 1101

2011

Closest in time.

P. Creminelli, G. D’Amico, M. Musso, J. Norena, E. Trincherini, JCAP 1102

Original

2011

Closest in time.