Hardware-Validated Quantum Advantage: 10 Experiments on IBM Quantum Processors (February 2026)

10 rigorous quantum advantage experiments on IBM Quantum Eagle and Heron processors (ibm_fez 156-qubit, ibm_torino 133-qubit), with honest reporting: 4 confirmed, 6 refuted. Confirmed (✅) XEB Quantum Advantage — F_XEB > 0 at all 8 circuit depths (ibm_fez). Random circuits sample from classically intractable distributions. Quantum Teleportation — Average fidelity F = 0.773, exceeding the classical bound of 2/3 by 16%. Full protocol with dynamic mid-circuit measurement and classical feedforward (ibm_torino). GHZ Entanglement Depth — Genuine N-partite entanglement (F > 0.5 witness) for N = 2 through 8 qubits. Fidelity decays 2.7%/qubit (ibm_torino). Information Scrambling — Local perturbation becomes globally indistinguishable by depth 3 (TVD = 0.176). Entropy approaches Haar-random limit. Consistent with fast scrambling conjecture (ibm_torino). Refuted (❌) ZZ Period Universality — Periods range 6.7–333 μs (CV = 123%), pair-specific rather than universal. K8 Coherence Revival — T1 amplitude damping artifact (R² = 0.976), not coherent oscillation. CHSH Bell Violation — max |S| = 0.106, far below classical bound of 2.0. 10⁶× Zeno Suppression — Gate noise from parity checks dominates; T1 relaxation is the bottleneck, not T2 dephasing. θ_lock Resonance at 51.843° — z-score = −1.0, statistically indistinguishable from noise. χ_PC Phase Conjugation — While χ_PC = 0.946 is validated, it functions as a software parameter rather than a privileged physical constant. Dataset includes complete experiment scripts (Python/Qiskit), raw hardware results (JSON with IBM Quantum job IDs), and analysis code. All results independently verifiable via IBM Quantum Platform. Website: www.quantum-advantage.dev