Bouncing and emergent cosmologies from Arnowitt-Deser-Misner RG flows

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Bouncing and emergent cosmologies from Arnowitt-Deser-Misner RG flows. / Bonanno, Alfio; Gabriele Gionti, S. J.; Platania, Alessia.

In: Classical and Quantum Gravity, Vol. 35, No. 6, 065004, 08.02.2018.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Bonanno, A, Gabriele Gionti, SJ & Platania, A 2018, 'Bouncing and emergent cosmologies from Arnowitt-Deser-Misner RG flows', Classical and Quantum Gravity, vol. 35, no. 6, 065004. https://doi.org/10.1088/1361-6382/aaa535

APA

Bonanno, A., Gabriele Gionti, S. J., & Platania, A. (2018). Bouncing and emergent cosmologies from Arnowitt-Deser-Misner RG flows. Classical and Quantum Gravity, 35(6), [065004]. https://doi.org/10.1088/1361-6382/aaa535

Vancouver

Bonanno A, Gabriele Gionti SJ, Platania A. Bouncing and emergent cosmologies from Arnowitt-Deser-Misner RG flows. Classical and Quantum Gravity. 2018 Feb 8;35(6). 065004. https://doi.org/10.1088/1361-6382/aaa535

Author

Bonanno, Alfio ; Gabriele Gionti, S. J. ; Platania, Alessia. / Bouncing and emergent cosmologies from Arnowitt-Deser-Misner RG flows. In: Classical and Quantum Gravity. 2018 ; Vol. 35, No. 6.

Bibtex

@article{89a1ded2301945ef8257d95907464442,
title = "Bouncing and emergent cosmologies from Arnowitt-Deser-Misner RG flows",
abstract = "Asymptotically safe gravity provides a framework for the description of gravity from the trans-Planckian regime to cosmological scales. According to this scenario, the cosmological constant and Newton's coupling are functions of the energy scale whose evolution is dictated by the renormalization group (RG) equations. The formulation of the RG equations on foliated spacetimes, based on the Arnowitt-Deser-Misner (ADM) formalism, furnishes a natural way to construct the RG energy scale from the spectrum of the Laplacian operator on the spatial slices. Combining this idea with an RG improvement procedure, in this work we study quantum gravitational corrections to the Einstein-Hilbert action on Friedmann-Lema{\^i}tre-Robertson-Walker backgrounds. The resulting quantum-corrected Friedmann equations can give rise to both bouncing cosmologies and emergent Universe solutions. Our bouncing models do not require the presence of exotic matter and emergent Universe solutions can be constructed for any allowed topology of the spatial slices.",
keywords = "asymptotic safety, bouncing cosmologies, cosmology, emergent Universe, quantum gravity",
author = "Alfio Bonanno and {Gabriele Gionti}, {S. J.} and Alessia Platania",
note = "Publisher Copyright: {\textcopyright} 2018 IOP Publishing Ltd.",
year = "2018",
month = feb,
day = "8",
doi = "10.1088/1361-6382/aaa535",
language = "English",
volume = "35",
journal = "Classical and Quantum Gravity",
issn = "0264-9381",
publisher = "Institute of Physics Publishing Ltd",
number = "6",

}

RIS

TY - JOUR

T1 - Bouncing and emergent cosmologies from Arnowitt-Deser-Misner RG flows

AU - Bonanno, Alfio

AU - Gabriele Gionti, S. J.

AU - Platania, Alessia

N1 - Publisher Copyright: © 2018 IOP Publishing Ltd.

PY - 2018/2/8

Y1 - 2018/2/8

N2 - Asymptotically safe gravity provides a framework for the description of gravity from the trans-Planckian regime to cosmological scales. According to this scenario, the cosmological constant and Newton's coupling are functions of the energy scale whose evolution is dictated by the renormalization group (RG) equations. The formulation of the RG equations on foliated spacetimes, based on the Arnowitt-Deser-Misner (ADM) formalism, furnishes a natural way to construct the RG energy scale from the spectrum of the Laplacian operator on the spatial slices. Combining this idea with an RG improvement procedure, in this work we study quantum gravitational corrections to the Einstein-Hilbert action on Friedmann-Lemaître-Robertson-Walker backgrounds. The resulting quantum-corrected Friedmann equations can give rise to both bouncing cosmologies and emergent Universe solutions. Our bouncing models do not require the presence of exotic matter and emergent Universe solutions can be constructed for any allowed topology of the spatial slices.

AB - Asymptotically safe gravity provides a framework for the description of gravity from the trans-Planckian regime to cosmological scales. According to this scenario, the cosmological constant and Newton's coupling are functions of the energy scale whose evolution is dictated by the renormalization group (RG) equations. The formulation of the RG equations on foliated spacetimes, based on the Arnowitt-Deser-Misner (ADM) formalism, furnishes a natural way to construct the RG energy scale from the spectrum of the Laplacian operator on the spatial slices. Combining this idea with an RG improvement procedure, in this work we study quantum gravitational corrections to the Einstein-Hilbert action on Friedmann-Lemaître-Robertson-Walker backgrounds. The resulting quantum-corrected Friedmann equations can give rise to both bouncing cosmologies and emergent Universe solutions. Our bouncing models do not require the presence of exotic matter and emergent Universe solutions can be constructed for any allowed topology of the spatial slices.

KW - asymptotic safety

KW - bouncing cosmologies

KW - cosmology

KW - emergent Universe

KW - quantum gravity

UR - http://www.scopus.com/inward/record.url?scp=85042354112&partnerID=8YFLogxK

U2 - 10.1088/1361-6382/aaa535

DO - 10.1088/1361-6382/aaa535

M3 - Journal article

AN - SCOPUS:85042354112

VL - 35

JO - Classical and Quantum Gravity

JF - Classical and Quantum Gravity

SN - 0264-9381

IS - 6

M1 - 065004

ER -

ID: 388513907