What carries the quantum Darwinism record texture’s robustness to spin-flip coupling strength? Edge-level interventions on the flip couplings in a central-spin model
Tristen Pierson
Abstract
Preregistered simulation study. An earlier study in this series found the redundant record plateau in a central-spin model robust to rescaling the spin-flip coupling amplitudes, but that sweep preserved the coupling graph. This study discriminates three candidate carriers of the robustness — the specific coupling pattern, the coupling graph’s connectivity alone, or generic mixing strength — by interventions that delete, reduce, permute, or remove flip couplings at matched total strength.