Primordial Black Holes from QCD Axion Bubbles
arXiv:2006.13137 · doi:10.1088/1475-7516/2020/11/060
Abstract
We propose a scenario in which a strong Peccei-Quinn (PQ) symmetry breaking in the early universe results in large inhomogeneities of the initial QCD axion field value, leading to the formation of very dense axion bubbles. Some of the axion bubbles subsequently collapse into primordial black holes (PBHs). The spatially homogeneous part of the QCD axion explains dark matter of the universe, while the PBHs arising from the axion bubbles can explain the LIGO events or the seed of supermassive black holes. Interestingly, the mass of PBH is determined by the axion decay constant; for GeV, the PBH mass is heavier than about . In addition, axion miniclusters are also formed from the axion bubbles more abundantly than PBHs, and their masses are expected to be heavier than in the usual scenario based on the spontaneous breaking of the PQ symmetry after inflation.
22 pages, 6 figures
References in corpus (12)
- GW170814: A Three-Detector Observation of Gravitational Waves from a Binary Black Hole Coalescence
- Primordial Black Holes as Dark Matter
- Limits on the Macho Content of the Galactic Halo from the EROS-2 Survey of the Magellanic Clouds
- An ultra-luminous quasar with a twelve-billion-solar-mass black hole at redshift 6.30
- Constraints on Earth-mass primordial black holes from OGLE 5-year microlensing events
- Solving puzzles of GW150914 by primordial black holes
- Inhomogeneous baryogenesis, cosmic antimatter, and dark matter
- Separate Universes Do Not Constrain Primordial Black Hole Formation
- Supermassive black holes formed by direct collapse of inflationary perturbations
- Lattice QCD for Cosmology
- The separate universe problem: 40 years on
- Why the mean mass of primordial black hole distribution is close to 10
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- Primordial Black Hole Archaeology with Gravitational Waves from Cosmic Strings
- Primordial black hole formation with full numerical relativity
- Cosmological effects of Peccei-Quinn symmetry breaking on QCD axion dark matter
- Shining Primordial Black Holes
- Angular correlation as a novel probe of supermassive primordial black holes
- STOLAS: STOchastic LAttice Simulation of cosmic inflation
- Constraints on the abundance of supermassive primordial black holes from lensing of compact radio sources
- Primordial black holes generated by fast-roll mechanism in non-canonical natural inflation
- Resonant production of dark photons from axion without a large coupling
- Revisiting the Affleck-Dine mechanism for primordial black hole formation
- New scenario of QCD axion clump formation I: Linear analysis
- Primordial black holes: constraints, potential evidence and prospects
- New mechanism for primordial black hole formation from the QCD axion
- Primordial Black Hole Formation via Inverted Bubble Collapse
- Strong clustering of primordial black holes from Affleck-Dine mechanism
- Cosmological Consequences of Domain Walls Biased by Quantum Gravity
- The Dark Side of the Moon: Listening to Scalar-Induced Gravitational Waves