Evaluation of Distimation's Real-world Performance on a Superconducting Quantum Computer
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866915685169364992 |
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| author | Yokomori, Hikaru Koyama, Marii Benchasattabuse, Naphan Hajdušek, Michal Nagayama, Shota Van Meter, Rodney |
| author_facet | Yokomori, Hikaru Koyama, Marii Benchasattabuse, Naphan Hajdušek, Michal Nagayama, Shota Van Meter, Rodney |
| contents | Quantum state estimation plays a crucial role in ensuring reliable creation of entanglement within quantum networks, yet conventional Quantum State Tomography (QST) methods remain resource-intensive and impractical for scaling. To address these limitations, we experimentally validate Distimation, a novel distillation-based protocol designed for efficient Bell-diagonal state estimation. Using IBM Quantum simulators and hardware, we demonstrate that Distimation accurately estimates Bell parameters under simulated and real-world noise conditions, but also demonstrating limitations with operational noise and number of available shots. Additionally, we simulate an asymmetric-fidelity Bell pair scenario via Measurement-Based Quantum Computation (MBQC) to further validate Distimation under realistic network conditions. Our results establish Distimation as a viable method for scalable, real-time entanglement monitoring in practical quantum networks. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_18141 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Evaluation of Distimation's Real-world Performance on a Superconducting Quantum Computer Yokomori, Hikaru Koyama, Marii Benchasattabuse, Naphan Hajdušek, Michal Nagayama, Shota Van Meter, Rodney Quantum Physics Quantum state estimation plays a crucial role in ensuring reliable creation of entanglement within quantum networks, yet conventional Quantum State Tomography (QST) methods remain resource-intensive and impractical for scaling. To address these limitations, we experimentally validate Distimation, a novel distillation-based protocol designed for efficient Bell-diagonal state estimation. Using IBM Quantum simulators and hardware, we demonstrate that Distimation accurately estimates Bell parameters under simulated and real-world noise conditions, but also demonstrating limitations with operational noise and number of available shots. Additionally, we simulate an asymmetric-fidelity Bell pair scenario via Measurement-Based Quantum Computation (MBQC) to further validate Distimation under realistic network conditions. Our results establish Distimation as a viable method for scalable, real-time entanglement monitoring in practical quantum networks. |
| title | Evaluation of Distimation's Real-world Performance on a Superconducting Quantum Computer |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2504.18141 |