The primordial black hole from running curvaton

Abstract

In light of our previous work \cite{Liu:2019xhn}, we investigate the possibility of the formation of a primordial black hole in the second inflationary process induced by the oscillation of curvaton. By adopting the instability of the Mathieu equation, one could utilize the $\delta$ function to fully describe the power spectrum. Due to the running of curvaton mass, we can simulate the value of abundance of primordial black holes nearly covering all of the mass ranges, in which we have given three special cases. One case could account for the dark matter in some sense since the abundance of a primordial black hole is about $75\%$. At late times, the relic of exponential potential could be approximated to a constant of the order of cosmological constant dubbed as a role of dark energy. Thus, our model could unify dark energy and dark matter from the perspective of phenomenology. Finally, it sheds new light on exploring Higgs physics.

To be published in Chinese physics C

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Cited by in corpus (12)

• The recent gravitational wave observation by pulsar timing arrays and primordial black holes: the importance of non-gaussianities
• Primordial black holes in the curvaton model: possible connections to pulsar timing arrays and dark matter
• Primordial Black Hole Formation in Non-Minimal Curvaton Scenario
• Curbing PBHs with PTAs
• Constraints on primordial black holes from LIGO-Virgo-KAGRA O3 events
• Sudden braking and turning with a two-field potential bump: primordial black hole formation
• Revisiting the Affleck-Dine mechanism for primordial black hole formation
• The Irrelevance of Primordial Black Hole Clustering in the LVK mass range
• Microlensing of dark matter models in the Milky Way
• Inflationary power spectrum from the Lanczos algorithm
• Primordial black holes from a curvaton: the role of bimodal distributions
• Krylov complexity of thermal state in early universe