Curvature and dynamical spacetimes: can we peer into the quantum regime?

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Curvature and dynamical spacetimes : can we peer into the quantum regime? / Cardoso, Vitor; Hilditch, David; Marouda, Krinio; Natario, Jose; Sperhake, Ulrich.

I: Classical and Quantum Gravity, Bind 40, Nr. 6, 065008, 16.03.2023.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Cardoso, V, Hilditch, D, Marouda, K, Natario, J & Sperhake, U 2023, 'Curvature and dynamical spacetimes: can we peer into the quantum regime?', Classical and Quantum Gravity, bind 40, nr. 6, 065008. https://doi.org/10.1088/1361-6382/acb9cd

APA

Cardoso, V., Hilditch, D., Marouda, K., Natario, J., & Sperhake, U. (2023). Curvature and dynamical spacetimes: can we peer into the quantum regime? Classical and Quantum Gravity, 40(6), [065008]. https://doi.org/10.1088/1361-6382/acb9cd

Vancouver

Cardoso V, Hilditch D, Marouda K, Natario J, Sperhake U. Curvature and dynamical spacetimes: can we peer into the quantum regime? Classical and Quantum Gravity. 2023 mar. 16;40(6). 065008. https://doi.org/10.1088/1361-6382/acb9cd

Author

Cardoso, Vitor ; Hilditch, David ; Marouda, Krinio ; Natario, Jose ; Sperhake, Ulrich. / Curvature and dynamical spacetimes : can we peer into the quantum regime?. I: Classical and Quantum Gravity. 2023 ; Bind 40, Nr. 6.

Bibtex

@article{e416d507dadf40a5b4232341a5cdd9fc,
title = "Curvature and dynamical spacetimes: can we peer into the quantum regime?",
abstract = "Stationary compact astrophysical objects such as black holes and neutron stars behave as classical systems from the gravitational point of view. Their (observable) curvature is everywhere {"}small'. Here we investigate whether mergers of such objects, or other strongly dynamical spacetimes such as collapsing configurations, may probe the strong-curvature regime of general relativity. Our results indicate that dynamical black hole spacetimes always result in a modest increase similar to 3 in the Kretschmann scalar, relative to the stationary state. In contrast, we find that the Kretschmann scalar can dynamically increase by orders of magnitude, during the gravitational collapse of scalar fields, and that the (normalized) peak curvature does not correspond to that of the critical solution. Nevertheless, without fine tuning of initial data, this increase lies far below that needed to render quantum-gravity corrections important.",
keywords = "curvature in dynamical spacetimes, gravitational collapse, 1-loop corrections to GR, EXTREME GRAVITY TESTS, GRAVITATIONAL-WAVES, NUMERICAL RELATIVITY, HORIZON FINDER, COLLAPSE",
author = "Vitor Cardoso and David Hilditch and Krinio Marouda and Jose Natario and Ulrich Sperhake",
year = "2023",
month = mar,
day = "16",
doi = "10.1088/1361-6382/acb9cd",
language = "English",
volume = "40",
journal = "Classical and Quantum Gravity",
issn = "0264-9381",
publisher = "Institute of Physics Publishing Ltd",
number = "6",

}

RIS

TY - JOUR

T1 - Curvature and dynamical spacetimes

T2 - can we peer into the quantum regime?

AU - Cardoso, Vitor

AU - Hilditch, David

AU - Marouda, Krinio

AU - Natario, Jose

AU - Sperhake, Ulrich

PY - 2023/3/16

Y1 - 2023/3/16

N2 - Stationary compact astrophysical objects such as black holes and neutron stars behave as classical systems from the gravitational point of view. Their (observable) curvature is everywhere "small'. Here we investigate whether mergers of such objects, or other strongly dynamical spacetimes such as collapsing configurations, may probe the strong-curvature regime of general relativity. Our results indicate that dynamical black hole spacetimes always result in a modest increase similar to 3 in the Kretschmann scalar, relative to the stationary state. In contrast, we find that the Kretschmann scalar can dynamically increase by orders of magnitude, during the gravitational collapse of scalar fields, and that the (normalized) peak curvature does not correspond to that of the critical solution. Nevertheless, without fine tuning of initial data, this increase lies far below that needed to render quantum-gravity corrections important.

AB - Stationary compact astrophysical objects such as black holes and neutron stars behave as classical systems from the gravitational point of view. Their (observable) curvature is everywhere "small'. Here we investigate whether mergers of such objects, or other strongly dynamical spacetimes such as collapsing configurations, may probe the strong-curvature regime of general relativity. Our results indicate that dynamical black hole spacetimes always result in a modest increase similar to 3 in the Kretschmann scalar, relative to the stationary state. In contrast, we find that the Kretschmann scalar can dynamically increase by orders of magnitude, during the gravitational collapse of scalar fields, and that the (normalized) peak curvature does not correspond to that of the critical solution. Nevertheless, without fine tuning of initial data, this increase lies far below that needed to render quantum-gravity corrections important.

KW - curvature in dynamical spacetimes

KW - gravitational collapse

KW - 1-loop corrections to GR

KW - EXTREME GRAVITY TESTS

KW - GRAVITATIONAL-WAVES

KW - NUMERICAL RELATIVITY

KW - HORIZON FINDER

KW - COLLAPSE

U2 - 10.1088/1361-6382/acb9cd

DO - 10.1088/1361-6382/acb9cd

M3 - Journal article

VL - 40

JO - Classical and Quantum Gravity

JF - Classical and Quantum Gravity

SN - 0264-9381

IS - 6

M1 - 065008

ER -

ID: 340973656