Quantum optimal control via Kuramoto-XY synchronisation on IBM Heron
Anulum Institute / SCPN Quantum Control
Challenge
Quantum hardware results are easy to over-interpret. A demonstration on 156 superconducting qubits can be read as evidence of general quantum advantage unless the claim boundary explicitly states the qubit count, error-mitigation method, and noise regime. The gap between a bounded NISQ demonstration and an unbounded claim is where most quantum communication fails.
Approach
SCPN Quantum Control formulates Kuramoto-XY synchronisation as a quantum optimal-control problem and executes it on IBM Heron r2. Every hardware run is packaged as a studio.quantum-control.v1 evidence bundle that records the measured qubit count, the CHSH statistic, the error-mitigation window, and the exact claim boundary. Claims beyond the measured window are explicitly graded bounded-model so they cannot be mistaken for general statements.
Results
Twenty hardware experiments produced a CHSH S-value of 2.165 within the declared error-mitigation regime. The evidence bundle records the 156-qubit configuration, the Rust-accelerated classical reference used for parity checks, and the bounded-model boundary. The publication renders the result at this boundary rather than as a general quantum-advantage claim.