Quantum Repeater Node Architectures: A Technical Note on Memory Lifetime Requirements

Abstract

Quantum Repeater Node Architectures has moved quickly from a niche scientific question to something a wider community can
now investigate with reasonably reliable tools, but the evidence behind it has not always kept pace. We pull together the current
evidence for quantum repeater node architectures, covering the methodological, practical, regulatory and cost angles, with an eye
on where practice has genuinely settled and where researchers and reviewers are still largely working it out for themselves.
Selective, context-specific pursuit looks better supported by the evidence gathered here than either broad rollout or blanket
avoidance.