In the recent years, primordial black holes (PBHs) have emerged as one of the most
interesting and hotly debated topics in cosmology. Among other possibilities, PBHs could …

Primordial black holes (PBHs) and the violation of the null energy condition (NEC) have
significant implications for our understanding of the very early Universe. We present a novel …

We present a novel model-independent generic mechanism for primordial black hole
formation within the context of non-singular matter bouncing cosmology. In particular …

We present a new realization of the resonant production of primordial black holes as well as
gravitational waves in a two-stage inflation model consisting of a scalar field ϕ with an axion …

We report on a novel phenomenon of the resonance effect of primordial density
perturbations arisen from a sound speed parameter with an oscillatory behavior, which can …

As potential candidates of dark matter, primordial black holes (PBHs) are within the core
scopes of various astronomical observations. In light of the explosive development of …

We investigate the production of primordial black holes (PBHs) in a mixed inflaton-curvaton
scenario with a quadratic curvaton potential, assuming the curvaton is in de Sitter …

We study sound speed resonance (SSR) mechanism for primordial black hole (PBH)
formation in an early universe scenario with inflaton and curvaton being mixed. In this …

The phenomenology of primordial black hole (PBH) physics and the associated PBH
abundance constraints can be used to probe the physics of the early universe. In this work …

We present a concrete realization of the sound speed resonance (SSR) mechanism for
primordial black hole (PBH) formation within a specific model of Dirac-Born-Infeld (DBI) …