Designing Fault-Tolerant Blind Quantum Computation
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arXiv
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| Auteurs principaux: | , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866910971015987200 |
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| author | Baranes, Gefen Wang, Iria W. Machado, Francisco Suleymanzade, Aziza Stas, Pieter-Jan Wei, Yan-Cheng Yelin, Susanne F. Borregaard, Johannes Lukin, Mikhail D. |
| author_facet | Baranes, Gefen Wang, Iria W. Machado, Francisco Suleymanzade, Aziza Stas, Pieter-Jan Wei, Yan-Cheng Yelin, Susanne F. Borregaard, Johannes Lukin, Mikhail D. |
| contents | Blind quantum computing (BQC) is a computational paradigm that allows a client with limited quantum capabilities to delegate quantum computations to a more powerful server while keeping both the algorithm and data hidden. However, in practice, existing BQC protocols face significant challenges when scaling to large-scale computations due to photon losses, low efficiencies, and high overheads associated with fault-tolerant operations, requiring the client to compile both logical operations and error correction primitives. We use a recently demonstrated hybrid light-matter approach [PRL 132, 150604 (2024); Science 388, 509-513 (2025)] to develop an architecture for scalable fault-tolerant blind quantum computation. By combining high-fidelity local gates on the server's matter qubits with delegated blind rotations using photons, we construct loss-tolerant delegated gates that enable efficient algorithm compilation strategies and a scalable approach for fault-tolerant blind logical algorithms. Our approach improves the error-correction threshold and increases the speed and depth of blind logical circuits. Finally, we outline how this architecture can be implemented on state-of-the-art quantum hardware, including neutral atom arrays and solid-state spin defects. These new capabilities open up new opportunities for deep circuit blind quantum computing. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_21621 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Designing Fault-Tolerant Blind Quantum Computation Baranes, Gefen Wang, Iria W. Machado, Francisco Suleymanzade, Aziza Stas, Pieter-Jan Wei, Yan-Cheng Yelin, Susanne F. Borregaard, Johannes Lukin, Mikhail D. Quantum Physics Blind quantum computing (BQC) is a computational paradigm that allows a client with limited quantum capabilities to delegate quantum computations to a more powerful server while keeping both the algorithm and data hidden. However, in practice, existing BQC protocols face significant challenges when scaling to large-scale computations due to photon losses, low efficiencies, and high overheads associated with fault-tolerant operations, requiring the client to compile both logical operations and error correction primitives. We use a recently demonstrated hybrid light-matter approach [PRL 132, 150604 (2024); Science 388, 509-513 (2025)] to develop an architecture for scalable fault-tolerant blind quantum computation. By combining high-fidelity local gates on the server's matter qubits with delegated blind rotations using photons, we construct loss-tolerant delegated gates that enable efficient algorithm compilation strategies and a scalable approach for fault-tolerant blind logical algorithms. Our approach improves the error-correction threshold and increases the speed and depth of blind logical circuits. Finally, we outline how this architecture can be implemented on state-of-the-art quantum hardware, including neutral atom arrays and solid-state spin defects. These new capabilities open up new opportunities for deep circuit blind quantum computing. |
| title | Designing Fault-Tolerant Blind Quantum Computation |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2505.21621 |