Gaussian Planck Relics are Ruled-Out as Dark Matter by LIGO
arXiv:2509.20533 · doi:10.1016/j.dark.2025.102174
Abstract
Quantum Gravity models suggest that singularities in gravitational collapse can be replaced by bounces, leading to the formation of Planck star remnants (PSR) that survive as stable relics once the black holes evaporate to the Planck mass. Recently, we proposed that such relics can be a viable candidate for dark matter. Here we show that LIGO's upper limit on the gravitational wave background rules out a formation pathway of Planck mass relics as dark matter from Gaussian initial conditions. This leaves non-Gaussian primordial fluctuations as the only viable channel for making Planck mass relics as dark matter.
arXiv comment8 pages with 2 figures, comments are very welcome!
References in corpus (33)
- Background Independent Quantum Gravity: A Status Report
- Discreteness of area and volume in quantum gravity
- Quantum gravity and minimum length
- Properties of singularities in (phantom) dark energy universe
- Loop Quantum Cosmology: A Status Report
- Primordial Black Holes as Dark Matter
- Perturbative Quantum Gravity as a Double Copy of Gauge Theory
- Quantum Nature of the Big Bang
- Primordial Black Holes as Dark Matter: Recent Developments
- Horizon-scale tests of gravity theories and fundamental physics from the Event Horizon Telescope image of Sagittarius A
- Loop Quantum Gravity
- Primordial Black Holes
- Loop Quantum Cosmology
- Planck stars
- The 1965 Penrose singularity theorem
- Recent developments in gravitational collapse and spacetime singularities
- Observational Evidence for Primordial Black Holes: A Positivist Perspective
- Loop Quantum Cosmology: An Overview
- Quantum Oppenheimer-Snyder and Swiss Cheese models
- Equilibrium configurations from gravitational collapse
- Planck scale black hole dark matter from Higgs inflation
- Comments on magnetic black holes
- Planck star phenomenology
- Inflation Induced Planck-Size Black Hole Remnants As Dark Matter
- Testing loop quantum cosmology
- Hawking radiation of nonsingular black holes in two dimensions
- Spacetime Singularities and Cosmic Censorship Conjecture: A Review with Some Thoughts
- Dark matter as Planck relics without too exotic hypotheses
- Searching for Heavy Dark Matter near the Planck Mass with XENON1T
- Planck Stars from a Scale-dependent Gravity theory
- Could Planck Star Remnants be Dark Matter?
- Primordial black holes as cosmic expansion accelerators
- Static Planck stars from effective loop quantum gravity