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| Autore principale: | |
|---|---|
| Natura: | Recurso digital |
| Lingua: | inglese |
| Pubblicazione: |
Zenodo
2026
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| Soggetti: | |
| Accesso online: | https://doi.org/10.5281/zenodo.19639561 |
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- <p>v8 (18 April 2026): Added 8-qubit hardware validation results (qtrls_hardware_8q.json). Paper submitted to npj Quantum Information on 18 April 2026 (submission ID: 253a94b1-2733-475e-a1f1-16c06d506b40).</p> <p> </p> <p>8-Qubit Hardware Validation (18 April 2026)<br>A single-trial 8-qubit F_R measurement was performed on IonQ Forte QPU (ionq.qpu.forte-1) via Azure Quantum. Circuit: 32 RZ gates, 28 CX gates, 8 RY gates forward; 64 RZ, 56 CX, 8 RY reversed. 1000 shots each. F_R estimated via Bhattacharyya coefficient between forward and reverse measurement distributions. Hardware F_R = 0.8671 vs simulator baseline mean of 0.9179 (50 trials). Confirms F_R coupling is measurable at 8-qubit scale on real hardware.</p> <p>Verifiable job provenance:<br>- Forward job ID: 4d81dfb8-3ade-11f1-9c84-96a58bb47abc<br>- Reverse job ID: 4ec4764c-3ade-11f1-9c84-96a58bb47abc<br>- Target: ionq.qpu.forte-1<br>- Workspace: sharaf-hw4 (Azure Quantum, East US)<br>- Date: 18 April 2026</p> <p> </p> <p>4-Qubit Hardware Validation (18 April 2026)<br>Following simulator validation across 150 trials (4, 8, and 16 qubit scales), QTRLS v3 was validated on real quantum hardware via IonQ Forte QPU (ionq.qpu.forte-1) accessed through Azure Quantum. A 4-qubit F_R measurement was performed using the native IonQ JSON circuit format, submitting forward and reversed QTRLS circuits (theta = [0.5, 1.2, 0.8, 1.7], theta_opt = [1.1, 0.9, 1.4, 0.6], 1000 shots each). F_R was computed as the Bhattacharyya coefficient between the forward and reversed measurement distributions — a hardware-compatible proxy for the statevector fidelity used in simulation. Hardware result: F_R = 0.9945 (single trial), 0.9949 ± 0.0016 (5-trial mean). Simulator baseline mean F_R = 0.9508 (50 trials).</p> <p>Verifiable job provenance:<br>- Forward job ID: 5c4dc0da-3ac9-11f1-a37c-96a58bb47abc<br>- Reverse job ID: 5d6bb990-3ac9-11f1-a37c-96a58bb47abc<br>- Target: ionq.qpu.forte-1<br>- Workspace: sharaf-hw4 (Azure Quantum, East US)<br>- Date: 18 April 2026</p> <p>Raw results: qtrls_hardware_result.json, qtrls_hardware_multitrials.json, qtrls_hardware_8q.json</p> <p> </p> <p>Simulator Validation (17–18 April 2026)<br>150/150 trials converged across 4, 8, and 16 qubit scales. All gradients computed via parameter shift rule on real quantum circuits (v3 correction, 17 April 2026).</p> <p>- 4-qubit: 50/50 convergence, mean final F_R = 0.9508 ± 0.0080, mean convergence iteration 123.8<br>- 8-qubit: 50/50 convergence, mean final F_R = 0.9179 ± 0.0022, mean convergence iteration 30.8<br>- 16-qubit: 50/50 convergence, mean final F_R = 0.7924 ± 0.0143, mean convergence iteration 37.8</p> <p>Full scaling law confirmed across all three qubit scales.</p> <p> </p> <p>Version History</p> <p>v8 — 18 April 2026: 8-qubit hardware results added (qtrls_hardware_8q.json). Paper submitted to npj Quantum Information.<br>v7 — 18 April 2026: 4-qubit hardware validation on IonQ Forte. Single-trial F_R = 0.9945. Job IDs included.<br>v6 — 18 April 2026: 16-qubit scaling validation complete. 50/50 convergence. Mean F_R = 0.7924. 150/150 total trials converged. Full scaling law confirmed.<br>v5 — 17 April 2026: 8-qubit scaling validation. 50/50 convergence. Mean F_R = 0.9179. Mean convergence iteration 30.8.<br>v4 — 17 April 2026: 50-trial 4-qubit independent validation. 100% convergence. Mean F_R = 0.9508.<br>v3.1 — 17 April 2026: Implementation details removed from correction notice for confidentiality.<br>v3 — 17 April 2026: Critical implementation error in v2 corrected. Real quantum gradients implemented via parameter shift rule. All results from v3 onward are valid.<br>v2 — 17 April 2026: First simulation validation results. 50 independent runs, 100% convergence above F_R 0.85.<br>v1 — 13 April 2026: Initial deposit. Patent GB2608473.1 filed.</p> <p> </p> <p>Code available on request. Patent GB2608473.1 (filed 13 April 2026). All hardware results are publicly verifiable via Azure Quantum job IDs.</p>