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N. Kaloper, M. Kleban, A. E. Lawrence and S. Shenker, “Signatures of short distance physics in the cosmic microwave background,” Phys. Rev. D 66
2002
Earlier work this paper cites.
S. Weinberg, “Quantum contributions to cosmological correlations,” Phys. Rev. D 72
2005
Earlier work this paper cites.
M. S. Sloth, “Suppressing super-horizon curvature perturbations?,” Mod. Phys. Lett. A 21
2006
Earlier work this paper cites.
M. Li, C. Lin, T. Wang and Y. Wang, “Non-Gaussianity, Isocurvature Perturbation, Gravitational Waves and a No-Go Theorem for Isocurvaton,” Phys. Rev. D 79
Original
2009
Earlier work this paper cites.
X. Chen and Y. Wang, “Large non-Gaussianities with Intermediate Shapes from Quasi-Single Field Inflation,” Phys. Rev. D 81
Original
2010
Earlier work this paper cites.

Similar

X. Chen and Y. Wang, “Quasi-Single Field Inflation and Non-Gaussianities,” JCAP 1004
Original
2010
Cited alongside, same era.
X. Chen, “Primordial Non-Gaussianities from Inflation Models,” Adv. Astron. 2010
Original
2010
Cited alongside, same era.
A. J. Tolley and M. Wyman, “The Gelaton Scenario: Equilateral non-Gaussianity from multi-field dynamics,” Phys. Rev. D 81
Original
2010
Cited alongside, same era.
A. Achucarro, J. -O. Gong, S. Hardeman, G. A. Palma, S. P. Patil, “Features of heavy physics in the CMB power spectrum,” JCAP 1101
Original
2011
Cited alongside, same era.
D. Baumann and D. Green, “Signatures of Supersymmetry from the Early Universe,” arXiv:1109.0292 [hep-th]

Then

X. Chen, “Fingerprints of Primordial Universe Paradigms as Features in Density Perturbations,” Phys. Lett. B 706
Original
2011
Later among the works it cites.
G. Shiu and J. Xu, “Effective Field Theory and Decoupling in Multi-field Inflation: An Illustrative Case Study,” Phys. Rev. D 84
Original
2011
Later among the works it cites.
M. G. Jackson and K. Schalm, “Model Independent Signatures of New Physics in the Inflationary Power Spectrum,” Phys. Rev. Lett. 108
Original
2012
Closest in time.
X. Chen, “Primordial Features as Evidence for Inflation,” JCAP 1201
Original
2012
Closest in time.

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2012

Quasi-Single Field Inflation with Large Mass

Chen, Xingang, Wang, Yi

Understand

We study the effect of massive isocurvaton on density perturbations in quasi-single field inflation models, when the mass of the isocurvaton M becomes larger than the order of the Hubble parameter H.

We analytically compute the correction to the power spectrum, leading order in coupling but exact for all values of mass.
This verifies the previous numerical results for the range 0<M<3H/2 and shows that, in the large mass limit, the correction is of order H^2/M^2.

Built on

N. Kaloper, M. Kleban, A. E. Lawrence and S. Shenker, “Signatures of short distance physics in the cosmic microwave background,” Phys. Rev. D 66
2002
Earlier work this paper cites.
S. Weinberg, “Quantum contributions to cosmological correlations,” Phys. Rev. D 72
2005
Earlier work this paper cites.
M. S. Sloth, “Suppressing super-horizon curvature perturbations?,” Mod. Phys. Lett. A 21
2006
Earlier work this paper cites.
M. Li, C. Lin, T. Wang and Y. Wang, “Non-Gaussianity, Isocurvature Perturbation, Gravitational Waves and a No-Go Theorem for Isocurvaton,” Phys. Rev. D 79
Original
2009
Earlier work this paper cites.
X. Chen and Y. Wang, “Large non-Gaussianities with Intermediate Shapes from Quasi-Single Field Inflation,” Phys. Rev. D 81
Original
2010
Earlier work this paper cites.