Decoherence as a Function of Environmental Record Capacity: Isolating Irreversibility and Redundancy as Primary Control Variables

Standard approaches to mitigating quantum decoherence rely on minimizing system-environment coupling or suppressing thermal noise through cryogenic cooling. We present a computational study demonstrating that decoherence is governed not merely by interaction strength, but by the environment’s topological capacity to form irreversible, redundant records. Using a Lindblad master equation framework, we isolate two control variables: the environmental leak rate (κ) and the number of environmental modes (N) sharing the record. We show that at fixed total coupling, increasing environmental redundancy rapidly suppresses quantum revivals, driving the system into a classical record-forming regime. Conversely, environments with low irreversibility act as coherent memories, returning displaced coherence to the system. These results suggest that engineering ”commensurate environments”—substrates structurally constrained from forming redundant records—offers a viable pathway for preserving quantum coherence at elevated temperatures, independent of brute-force thermal suppression.