Universe's Primordial Quantum Memories

Understand

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.