Instabilities of Scalar Fields around Oscillating Stars

Research output: Contribution to journal › Letter › Research › peer-review

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Instabilities of Scalar Fields around Oscillating Stars. / Ikeda, Taishi; Cardoso, Vitor; Zilhao, Miguel.

In: Physical Review Letters, Vol. 127, No. 19, 191101, 05.11.2021.

Research output: Contribution to journal › Letter › Research › peer-review

Harvard

Ikeda, T, Cardoso, V & Zilhao, M 2021, 'Instabilities of Scalar Fields around Oscillating Stars', Physical Review Letters, vol. 127, no. 19, 191101. https://doi.org/10.1103/PhysRevLett.127.191101

APA

Ikeda, T., Cardoso, V., & Zilhao, M. (2021). Instabilities of Scalar Fields around Oscillating Stars. Physical Review Letters, 127(19), [191101]. https://doi.org/10.1103/PhysRevLett.127.191101

Vancouver

Ikeda T, Cardoso V, Zilhao M. Instabilities of Scalar Fields around Oscillating Stars. Physical Review Letters. 2021 Nov 5;127(19). 191101. https://doi.org/10.1103/PhysRevLett.127.191101

Author

Ikeda, Taishi ; Cardoso, Vitor ; Zilhao, Miguel. / Instabilities of Scalar Fields around Oscillating Stars. In: Physical Review Letters. 2021 ; Vol. 127, No. 19.

Bibtex

@article{e048050617124279a92a89ee455ca1c3,
title = "Instabilities of Scalar Fields around Oscillating Stars",
abstract = "The behavior of fundamental fields in strong gravity or nontrivial environments is important for our understanding of nature. This problem has interesting applications in the context of dark matter, of dark energy physics, or of quantum field theory. The dynamics of fundamental fields has been studied mainly in static or stationary backgrounds, whereas most of our Universe is dynamic. In this Letter we investigate {"}blueshift{"} and parametric instabilities of scalar fields in dynamical backgrounds, which can be triggered (for instance) by oscillating stars in scalar-tensor theories of gravity. We discuss possible implications of our results, which include constraints on an otherwise hard-to-access parameter space of scalar-tensor theories.",
keywords = "RADIAL OSCILLATIONS, NORMAL-MODES, GRAVITY, WAVES",
author = "Taishi Ikeda and Vitor Cardoso and Miguel Zilhao",
year = "2021",
month = nov,
day = "5",
doi = "10.1103/PhysRevLett.127.191101",
language = "English",
volume = "127",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "19",

}

RIS

TY - JOUR

T1 - Instabilities of Scalar Fields around Oscillating Stars

AU - Ikeda, Taishi

AU - Cardoso, Vitor

AU - Zilhao, Miguel

PY - 2021/11/5

Y1 - 2021/11/5

N2 - The behavior of fundamental fields in strong gravity or nontrivial environments is important for our understanding of nature. This problem has interesting applications in the context of dark matter, of dark energy physics, or of quantum field theory. The dynamics of fundamental fields has been studied mainly in static or stationary backgrounds, whereas most of our Universe is dynamic. In this Letter we investigate "blueshift" and parametric instabilities of scalar fields in dynamical backgrounds, which can be triggered (for instance) by oscillating stars in scalar-tensor theories of gravity. We discuss possible implications of our results, which include constraints on an otherwise hard-to-access parameter space of scalar-tensor theories.

AB - The behavior of fundamental fields in strong gravity or nontrivial environments is important for our understanding of nature. This problem has interesting applications in the context of dark matter, of dark energy physics, or of quantum field theory. The dynamics of fundamental fields has been studied mainly in static or stationary backgrounds, whereas most of our Universe is dynamic. In this Letter we investigate "blueshift" and parametric instabilities of scalar fields in dynamical backgrounds, which can be triggered (for instance) by oscillating stars in scalar-tensor theories of gravity. We discuss possible implications of our results, which include constraints on an otherwise hard-to-access parameter space of scalar-tensor theories.

KW - RADIAL OSCILLATIONS

KW - NORMAL-MODES

KW - GRAVITY

KW - WAVES

U2 - 10.1103/PhysRevLett.127.191101

DO - 10.1103/PhysRevLett.127.191101

M3 - Letter

C2 - 34797161

VL - 127

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 19

M1 - 191101

ER -

ID: 285309954