Universe's Primordial Quantum Memories

Abstract

We provide a very general argument showing that the Universe must have kept its quantum memories from an epoch much earlier than $60$ e-foldings before the end of inflation. The point is that a generic system of enhanced memory storage capacity exhibits a phenomenon of memory burden. Due to its universal nature this effect must be applicable to de Sitter since the latter has a maximal memory storage capacity thanks to its Gibbons-Hawking entropy. The primordial information pattern encoded in de Sitter memory initially costs very little energy. However, because of Gibbons-Hawking evaporation, the memory burden of the pattern grows in time and increasingly back reacts on the evaporation process. After a finite time the memory burden becomes unbearable and de Sitter quantum breaks. If inflation ended not long before its quantum break-time, the imprints of the primordial memory pattern can be observable. This provides a qualitatively new type of window in the Universe's beginning, a sort of cosmic quantum hair.

arXiv comment9 pages, 2 figures

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Cited by in corpus (15)

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• Entropy Bound and Unitarity of Scattering Amplitudes
• Ultralight Black Holes as Sources of High-Energy Particles
• The Timescales of Quantum Breaking
• Impact of memory-burdened black holes on primordial gravitational waves in light of Pulsar Timing Array
• Perturbative Understanding of Non-Perturbative Processes and Quantumization versus Classicalization
• Neutrinos from Primordial Black Holes in Theories with Extra Dimensions
• Can a Breakdown of Hawking Evaporation Open a New Mass Window for Primordial Black Holes as Dark Matter?
• Long-range enhanced mutual information from inflation
• Primordial black holes in Randall-Sundrum: Cosmological signatures
• Fast Pre-scramblers
• Similarities in the evaporation of saturated solitons and black holes
• Consistent Canonical Quantization of Gravity: Recovery of Classical GR from BRST-invariant Coherent States
• Memory burden effect of regular primordial black holes