The quantum cosmological tilt and the origin of dark matter
arXiv:2012.07883 · doi:10.1088/1475-7516/2021/10/055
Abstract
A promising candidate for cold dark matter is primordial black holes (PBH) formed from strong primordial quantum fluctuations. A necessary condition for the formation of PBH's is a change of sign in the tilt governing the anomalous scale invariance of the power spectrum from red at large scales into blue at small scales. Non-perturbative information on the dependence of the power spectrum tilt on energy scale can be extracted from the quantum Fisher information measuring the energy dependence of the quantum phases defining the de Sitter vacua. We show that this non-perturbative quantum tilt goes from a red tilted phase, at large scales, into a blue tilted phase at small scales converging to in the UV. This allows the formation of PBH's in the range of masses .
arXiv commentMatches accepted version to JCAP; results unchanged
References in corpus (16)
- Generating the curvature perturbation without an inflaton
- A History of Dark Matter
- Did LIGO detect dark matter?
- Primordial Black Holes as Dark Matter
- Primordial Black Holes as Dark Matter: Recent Developments
- KiDS-1000 Cosmology: Cosmic shear constraints and comparison between two point statistics
- Density Perturbations and Black Hole Formation in Hybrid Inflation
- A New Era in the Quest for Dark Matter
- Primordial black hole formation from an axion-like curvaton model
- CMB Spectral Distortions: Status and Prospects
- Cosmology from Quantum Information
- How Gaussian can the Sky be? Primordial Non-Gaussianity from Quantum Information
- Model Independent Prediction of the Spectral Index of Primordial Quantum Fluctuations
- Dark matter from primordial quantum information
- The Quantum Origin of Quasi de Sitter: a Model Independent Quantum Cosmological Tilt
- Topological susceptibility and information theory