Binary superradiance: A numerical study

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

Standard

Binary superradiance : A numerical study. / Ribeiro, Diogo C.; Zilhao, Miguel; Cardoso, Vitor.

In: Physical Review D, Vol. 105, No. 8, 084004, 05.04.2022.

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

Harvard

Ribeiro, DC, Zilhao, M & Cardoso, V 2022, 'Binary superradiance: A numerical study', Physical Review D, vol. 105, no. 8, 084004. https://doi.org/10.1103/PhysRevD.105.084004

APA

Ribeiro, D. C., Zilhao, M., & Cardoso, V. (2022). Binary superradiance: A numerical study. Physical Review D, 105(8), [084004]. https://doi.org/10.1103/PhysRevD.105.084004

Vancouver

Ribeiro DC, Zilhao M, Cardoso V. Binary superradiance: A numerical study. Physical Review D. 2022 Apr 5;105(8). 084004. https://doi.org/10.1103/PhysRevD.105.084004

Author

Ribeiro, Diogo C. ; Zilhao, Miguel ; Cardoso, Vitor. / Binary superradiance : A numerical study. In: Physical Review D. 2022 ; Vol. 105, No. 8.

Bibtex

@article{e2924cae310545728ddcfcf6f9dec60a,
title = "Binary superradiance: A numerical study",
abstract = "Rotating axisymmetric objects amplify incoming waves by superradiant scattering. When enclosed in a cavity, the repeated interaction of a confined field with the object may trigger superradiant instabilities. Rotating binaries are ubiquitous in physics, and play a fundamental role in astrophysics and in everyday life instruments. Such binaries may be prone to superradiant phenomena as well, but their inherent complexity makes it challenging to study how exactly such instabilities can be triggered. Here, we study a binary of two absorbing objects (mimicking black hole binaries, blades of a helicopter, etc.) revolving around a common center, and show that superradiant instabilities do occur, on expected timescales and frequency range. Our results provide the first demonstration that superradiance also occurs for highly asymmetric systems, and may have a wealth of applications in fluid dynamics and astrophysics. Extrapolating to astrophysical black holes, our findings indicate that compact binaries may be used as interesting particle detectors, depositing a fraction of their energy into putative new fundamental ultralight degrees of freedom.",
keywords = "SCATTERING",
author = "Ribeiro, {Diogo C.} and Miguel Zilhao and Vitor Cardoso",
year = "2022",
month = apr,
day = "5",
doi = "10.1103/PhysRevD.105.084004",
language = "English",
volume = "105",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "8",

}

RIS

TY - JOUR

T1 - Binary superradiance

T2 - A numerical study

AU - Ribeiro, Diogo C.

AU - Zilhao, Miguel

AU - Cardoso, Vitor

PY - 2022/4/5

Y1 - 2022/4/5

N2 - Rotating axisymmetric objects amplify incoming waves by superradiant scattering. When enclosed in a cavity, the repeated interaction of a confined field with the object may trigger superradiant instabilities. Rotating binaries are ubiquitous in physics, and play a fundamental role in astrophysics and in everyday life instruments. Such binaries may be prone to superradiant phenomena as well, but their inherent complexity makes it challenging to study how exactly such instabilities can be triggered. Here, we study a binary of two absorbing objects (mimicking black hole binaries, blades of a helicopter, etc.) revolving around a common center, and show that superradiant instabilities do occur, on expected timescales and frequency range. Our results provide the first demonstration that superradiance also occurs for highly asymmetric systems, and may have a wealth of applications in fluid dynamics and astrophysics. Extrapolating to astrophysical black holes, our findings indicate that compact binaries may be used as interesting particle detectors, depositing a fraction of their energy into putative new fundamental ultralight degrees of freedom.

AB - Rotating axisymmetric objects amplify incoming waves by superradiant scattering. When enclosed in a cavity, the repeated interaction of a confined field with the object may trigger superradiant instabilities. Rotating binaries are ubiquitous in physics, and play a fundamental role in astrophysics and in everyday life instruments. Such binaries may be prone to superradiant phenomena as well, but their inherent complexity makes it challenging to study how exactly such instabilities can be triggered. Here, we study a binary of two absorbing objects (mimicking black hole binaries, blades of a helicopter, etc.) revolving around a common center, and show that superradiant instabilities do occur, on expected timescales and frequency range. Our results provide the first demonstration that superradiance also occurs for highly asymmetric systems, and may have a wealth of applications in fluid dynamics and astrophysics. Extrapolating to astrophysical black holes, our findings indicate that compact binaries may be used as interesting particle detectors, depositing a fraction of their energy into putative new fundamental ultralight degrees of freedom.

KW - SCATTERING

U2 - 10.1103/PhysRevD.105.084004

DO - 10.1103/PhysRevD.105.084004

M3 - Journal article

VL - 105

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 8

M1 - 084004

ER -

ID: 315535596