Stimulated Axion Decay in Superradiant Clouds around Primordial Black Holes

The superradiant instability can lead to the generation of extremely dense axion clouds around rotating black holes. We show that, despite the long lifetime of the QCD axion with respect to spontaneous decay into photon pairs, stimulated decay becomes significant above a minimum axion density and le...

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Veröffentlicht in:	Physical review letters 2018-06, Vol.120 (23), p.231102-231102, Article 231102
Hauptverfasser:	Rosa, João G, Kephart, Thomas W
Format:	Artikel
Sprache:	eng
Schlagworte:	Black holes Clouds Dark matter Decay Electron-positron plasmas Lasing Pair production Plasma density Radio bursts Stability Universe
Online-Zugang:	Volltext
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