首页|Supermassive black holes triggered by QCD axion bubbles

Supermassive black holes triggered by QCD axion bubbles

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Supermassive black holes(SMBHs)are ubiquitous in the center of galaxies,although the origin of their massive seeds is still unknown.In this paper,we investigate the formation of SMBHs from the quantum chromodynamics(QCD)axion bubbles.In this case,primordial black holes(PBHs)are considered as the seeds of SMBHs,which are generated from the QCD axion bubbles due to an explicit Peccei-Quinn(PQ)symmetry breaking after inflation.The QCD axion bubbles are formed when the QCD axion starts to oscillate during the QCD phase transition.We consider a general case in which the axion bubbles are formed with the bubble effective angle θeff ∈(0,π],leading to the minimum PBH mass~O(104-107)M☉ for the axion decay constant fa~O(1016)GeV.The PBHs at this mass region may account for the seeds of SMBHs.

supermassive black holesprimordial black holesquantum chromodynamics axion

Hai-Jun Li、Ying-Quan Peng、Wei Chao、Yu-Feng Zhou

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Key Laboratory of Theoretical Physics,Institute of Theoretical Physics,Chinese Academy of Sciences,Beijing 100190,China

Center for Advanced Quantum Studies,Department of Physics,Beijing Normal University,Beijing 100875,China

School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China

School of Fundamental Physics and Mathematical Sciences,Hangzhou Institute for Advanced Study,UCAS,Hangzhou 310024,China

International Centre for Theoretical Physics Asia-Pacific,Beijing/Hangzhou,China

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国家自然科学基金国家自然科学基金国家重点研发计划CAS Project for Young Scientists in Basic Research YSBR-006国家自然科学基金国家自然科学基金国家自然科学基金

11775025121750272017YFA0402204118215051182550612047503

2024

理论物理通讯(英文版)
中国科学院理论物理研究所 中国物理学会

理论物理通讯(英文版)

CSTPCD
影响因子:0.333
ISSN:0253-6102
年,卷(期):2024.76(5)
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