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  • 2012.06831

    Rights statement: © 2021 American Physical Society

    Accepted author manuscript, 1.64 MB, PDF document

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Quintessential inflation in Palatini f(R) gravity

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Quintessential inflation in Palatini f(R) gravity. / Dimopoulos, Konstantinos; Sanchez Lopez, Samuel.

In: Physical Review D, Vol. 103, No. 4, 043533, 15.02.2021.

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Dimopoulos K, Sanchez Lopez S. Quintessential inflation in Palatini f(R) gravity. Physical Review D. 2021 Feb 15;103(4):043533. doi: 10.1103/PhysRevD.103.043533

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@article{00136f550a984a56962af5b1a75ecaa5,
title = "Quintessential inflation in Palatini f(R) gravity",
abstract = "We investigate in detail a family of quintessential inflation models in the context of R+R^2 Palatini modified gravity. We find that successful inflation and quintessence are obtained with an inflaton scalar potential that is approximately quadratic in inflation and inverse quartic in quintessence. We show that corrections for the kination period due to Palatini modified gravity are subdominant, while the setup does not challenge constraints on modified gravity from Solar System observations and microscopic experiments, in contrast to the metric case. We obtain concrete predictions regarding primordial tensors to be probed in the near future.",
keywords = "Palatini formalism, Quintessential Inflation, modified gravity",
author = "Konstantinos Dimopoulos and {Sanchez Lopez}, Samuel",
note = "{\textcopyright} 2021 American Physical Society ",
year = "2021",
month = feb,
day = "15",
doi = "10.1103/PhysRevD.103.043533",
language = "English",
volume = "103",
journal = "Physical Review D",
issn = "1550-7998",
publisher = "American Physical Society",
number = "4",

}

RIS

TY - JOUR

T1 - Quintessential inflation in Palatini f(R) gravity

AU - Dimopoulos, Konstantinos

AU - Sanchez Lopez, Samuel

N1 - © 2021 American Physical Society

PY - 2021/2/15

Y1 - 2021/2/15

N2 - We investigate in detail a family of quintessential inflation models in the context of R+R^2 Palatini modified gravity. We find that successful inflation and quintessence are obtained with an inflaton scalar potential that is approximately quadratic in inflation and inverse quartic in quintessence. We show that corrections for the kination period due to Palatini modified gravity are subdominant, while the setup does not challenge constraints on modified gravity from Solar System observations and microscopic experiments, in contrast to the metric case. We obtain concrete predictions regarding primordial tensors to be probed in the near future.

AB - We investigate in detail a family of quintessential inflation models in the context of R+R^2 Palatini modified gravity. We find that successful inflation and quintessence are obtained with an inflaton scalar potential that is approximately quadratic in inflation and inverse quartic in quintessence. We show that corrections for the kination period due to Palatini modified gravity are subdominant, while the setup does not challenge constraints on modified gravity from Solar System observations and microscopic experiments, in contrast to the metric case. We obtain concrete predictions regarding primordial tensors to be probed in the near future.

KW - Palatini formalism

KW - Quintessential Inflation

KW - modified gravity

U2 - 10.1103/PhysRevD.103.043533

DO - 10.1103/PhysRevD.103.043533

M3 - Journal article

VL - 103

JO - Physical Review D

JF - Physical Review D

SN - 1550-7998

IS - 4

M1 - 043533

ER -