Quantum landscape tomography for efficient single-gate optimization on quantum computers
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866909367360552960 |
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| author | Ben-Dov, Matan Arad, Itai Torre, Emanuele G. Dalla |
| author_facet | Ben-Dov, Matan Arad, Itai Torre, Emanuele G. Dalla |
| contents | Circuit optimization is a fundamental task for practical applications of near-term quantum computers. In this work we address this challenge through the powerful lenses of tensor network theory. Our approach involves the full characterization of the influence of individual gates on the entire circuit, a process we call quantum landscape tomography. We derive the necessary and sufficient requirements of this process and propose two implementations, respectively based on 2-unitary design and Clifford tableaux. The latter implementation strikes a convenient balance between the number of shots and the number of circuits needed for the tomography. Numerical simulations based on a realistic noise model demonstrate the advantage of our approach with respect to both gradient-free and gradient-based methods. Overall, our findings highlight the potential of quantum landscape tomography to enhance circuit optimization in near-term quantum computing applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_18305 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Quantum landscape tomography for efficient single-gate optimization on quantum computers Ben-Dov, Matan Arad, Itai Torre, Emanuele G. Dalla Quantum Physics Circuit optimization is a fundamental task for practical applications of near-term quantum computers. In this work we address this challenge through the powerful lenses of tensor network theory. Our approach involves the full characterization of the influence of individual gates on the entire circuit, a process we call quantum landscape tomography. We derive the necessary and sufficient requirements of this process and propose two implementations, respectively based on 2-unitary design and Clifford tableaux. The latter implementation strikes a convenient balance between the number of shots and the number of circuits needed for the tomography. Numerical simulations based on a realistic noise model demonstrate the advantage of our approach with respect to both gradient-free and gradient-based methods. Overall, our findings highlight the potential of quantum landscape tomography to enhance circuit optimization in near-term quantum computing applications. |
| title | Quantum landscape tomography for efficient single-gate optimization on quantum computers |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2407.18305 |