Production of high stellar-mass primordial black holes in trapped inflation

  • Shu-Lin Cheng
  • Wolung LeeEmail author
  • Kin-Wang Ng
Open Access
Regular Article - Theoretical Physics


Trapped inflation has been proposed to provide a successful inflation with a steep potential. We discuss the formation of primordial black holes in the trapped inflationary scenario. We show that primordial black holes are naturally produced during inflation with a steep trapping potential. In particular, we have given a recipe for an inflaton potential with which particle production can induce large non-Gaussian curvature perturbation that leads to the formation of high stellar-mass primordial black holes. These primordial black holes could be dark matter observed by the LIGO detectors through a binary black-hole merger. At the end, we have given an attempt to realize the required inflaton potential in the axion monodromy inflation, and discussed the gravitational waves sourced by the particle production.


Black Holes Cosmology of Theories beyond the SM 


Open Access

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Copyright information

© The Author(s) 2017

Authors and Affiliations

  1. 1.Department of PhysicsNational Taiwan Normal UniversityTaipeiTaiwan
  2. 2.Institute of Physics, Academia SinicaTaipeiTaiwan
  3. 3.Institute of Astronomy and Astrophysics, Academia SinicaTaipeiTaiwan

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