Evaluation of Distimation's Real-world Performance on a Superconducting Quantum Computer

• URL: http://arxiv.org/abs/2504.18141v1
• Date: Fri, 25 Apr 2025 07:50:17 GMT
• Title: Evaluation of Distimation's Real-world Performance on a Superconducting Quantum Computer
• Authors: Hikaru Yokomori, Marii Koyama, Naphan Benchasattabuse, Michal Hajdušek, Shota Nagayama, Rodney Van Meter,
• Abstract summary: Distimation is a novel distillation-based protocol designed for efficient Bell-diagonal state estimation.<n>Our results establish Distimation as a viable method for scalable, real-time entanglement monitoring in practical quantum networks.
• Score: 0.3958317527488534
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: 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.

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