Precise Control of Quantum Coherence via Classical Mixing Parameters (R²>0.99) [OC]

https://imgur.com/a/Cw5rSu0 Experimental results demonstrating precise, linear control over quantum coherence through classical mixing parameter (λ) sweeps from pure quantum states (λ=0) to fully classical behavior (λ=1). **Key Findings:** • **Normalized Amplitude:** Linear decay with R² = 0.9987, showing predictable coherence degradation • **XX Correlator:** Near-perfect linear relationship (R² = 1.00000) across the full λ range • **T2 Coherence Time:** Measured via XBASIS protocol, demonstrates expected exponential decay • **Residual Analysis:** Minimal deviation from theoretical predictions, confirming model accuracy **Technical Details:** Results obtained using IBM quantum hardware (Qiskit), sweeping λ across 10 points from 0.0 to 1.0. Classical mixing implemented as ρ_mixed = (1-λ)ρ_quantum + λρ_classical, allowing continuous tuning between pure quantum superposition and classical mixed states. The near-perfect linear relationships suggest quantum coherence behaves more predictably than often assumed, with implications for error mitigation strategies and hybrid quantum-classical algorithms. **Implications:** - Benchmarking quantum devices - Adaptive error mitigation techniques - Hybrid algorithms with dynamic quantum/classical adjustment - Understanding decoherence mechanisms (Also posted on r/Futurology for discussion of future applications) submitted by /u/KevinMonette [link] [comments]