Superradiance: Axionic couplings and plasma effects

Spieksma, Thomas F. M.; Cannizzaro, Enrico; Ikeda, Taishi; Cardoso, Vitor; Chen, Yifan

doi:10.1103/physrevd.108.063013

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Application-superradiant Clouds1

Introduction1

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2024

2025

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Cited by 17 publications

(2 citation statements)

References 91 publications

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“…For a review of superradiance, see [40]. For a more recent development on this topic from a field theoretic approach, see [53].…”

Section: Application-superradiant Cloudsmentioning

confidence: 99%

A Review of Axion Lasing in Astrophysics

Chen,

Kephart

2024

Universe

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“…For a review of superradiance, see [40]. For a more recent development on this topic from a field theoretic approach, see [53].…”

Section: Application-superradiant Cloudsmentioning

confidence: 99%

A Review of Axion Lasing in Astrophysics

Chen,

Kephart

2024

Universe

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“…Then the axion field surrounding the black hole can be amplified and form a cloud. Possible observational signals from BH atoms [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] and the final fate of this instability with or without external factors [28][29][30][31][32][33] have been actively discussed.…”

Section: Introductionmentioning

confidence: 99%

Axion cloud decay due to the axion-photon conversion with multi-pole background magnetic fields

Sakurai,

Yoo,

Naruko

et al. 2024

J. Cosmol. Astropart. Phys.

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We consider axion cloud decay due to the axion-photon conversion with multi-pole background magnetic fields. We focus on the ℓ = m = 1 and n = 2 mode for the axion field configuration since it has the largest growth rate associated with superradiant instability. Under the existence of a background multi-pole magnetic field, the axion field can be converted into the electromagnetic field through the axion-photon coupling. Then the decay rate due to the dissipation of the converted photons is calculated in a successive approximation. We found that the decay rate is significantly dependent on the azimuthal quantum number characterizing the background magnetic field, and can be comparable to or larger than the growth rate of the superradiant instability.

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Cavity as radio telescope for galactic dark photon

Zeng,

Liu,

et al. 2025

Science Bulletin

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Superradiance: Axionic couplings and plasma effects

Cited by 17 publications

References 91 publications

A Review of Axion Lasing in Astrophysics

A Review of Axion Lasing in Astrophysics

Axion cloud decay due to the axion-photon conversion with multi-pole background magnetic fields

Cavity as radio telescope for galactic dark photon

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