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Chaotic initial conditions for nonminimally coupled inflation via a conformal factor with a zero

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Chaotic initial conditions for nonminimally coupled inflation via a conformal factor with a zero. / Kim, Jinsu; McDonald, John.
In: Physical Review D, Vol. 95, No. 10, 103501, 15.05.2017.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Kim, J & McDonald, J 2017, 'Chaotic initial conditions for nonminimally coupled inflation via a conformal factor with a zero', Physical Review D, vol. 95, no. 10, 103501. https://doi.org/10.1103/PhysRevD.95.103501

APA

Kim, J., & McDonald, J. (2017). Chaotic initial conditions for nonminimally coupled inflation via a conformal factor with a zero. Physical Review D, 95(10), Article 103501. https://doi.org/10.1103/PhysRevD.95.103501

Vancouver

Kim J, McDonald J. Chaotic initial conditions for nonminimally coupled inflation via a conformal factor with a zero. Physical Review D. 2017 May 15;95(10):103501. Epub 2017 May 8. doi: 10.1103/PhysRevD.95.103501

Author

Kim, Jinsu ; McDonald, John. / Chaotic initial conditions for nonminimally coupled inflation via a conformal factor with a zero. In: Physical Review D. 2017 ; Vol. 95, No. 10.

Bibtex

@article{5ccef476b532497eb0673433e54fd7e3,
title = "Chaotic initial conditions for nonminimally coupled inflation via a conformal factor with a zero",
abstract = "Nonminimally coupled inflation models based on a nonminimal coupling xi phi R-2 and a phi(4) potential are in excellent agreement with the scalar spectral index observed by Planck. Here we consider the modification of these models by a conformal factor with a zero. This enables a nonminimally coupled model to have a Planck-scale potential energy density at large values of the inflaton field, which can account for the smooth, potential-dominated volume that is necessary for inflation to start. We show that models with a conformal factor zero generally predict a correlated increase of the spectral index n(s) and tensor-to-scalar ratio r. For values of n(s) that are within the present 2 - sigma bounds from Planck, modification by Delta r as large as 0.0013 is possible, which is large enough to be measured by next generation cosmic microwave background polarization satellites.",
author = "Jinsu Kim and John McDonald",
year = "2017",
month = may,
day = "15",
doi = "10.1103/PhysRevD.95.103501",
language = "English",
volume = "95",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "10",

}

RIS

TY - JOUR

T1 - Chaotic initial conditions for nonminimally coupled inflation via a conformal factor with a zero

AU - Kim, Jinsu

AU - McDonald, John

PY - 2017/5/15

Y1 - 2017/5/15

N2 - Nonminimally coupled inflation models based on a nonminimal coupling xi phi R-2 and a phi(4) potential are in excellent agreement with the scalar spectral index observed by Planck. Here we consider the modification of these models by a conformal factor with a zero. This enables a nonminimally coupled model to have a Planck-scale potential energy density at large values of the inflaton field, which can account for the smooth, potential-dominated volume that is necessary for inflation to start. We show that models with a conformal factor zero generally predict a correlated increase of the spectral index n(s) and tensor-to-scalar ratio r. For values of n(s) that are within the present 2 - sigma bounds from Planck, modification by Delta r as large as 0.0013 is possible, which is large enough to be measured by next generation cosmic microwave background polarization satellites.

AB - Nonminimally coupled inflation models based on a nonminimal coupling xi phi R-2 and a phi(4) potential are in excellent agreement with the scalar spectral index observed by Planck. Here we consider the modification of these models by a conformal factor with a zero. This enables a nonminimally coupled model to have a Planck-scale potential energy density at large values of the inflaton field, which can account for the smooth, potential-dominated volume that is necessary for inflation to start. We show that models with a conformal factor zero generally predict a correlated increase of the spectral index n(s) and tensor-to-scalar ratio r. For values of n(s) that are within the present 2 - sigma bounds from Planck, modification by Delta r as large as 0.0013 is possible, which is large enough to be measured by next generation cosmic microwave background polarization satellites.

U2 - 10.1103/PhysRevD.95.103501

DO - 10.1103/PhysRevD.95.103501

M3 - Journal article

VL - 95

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 10

M1 - 103501

ER -