Robust and optimal control of open quantum systems
Fuente:
arXiv
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| Autores principales: | , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866917316174807040 |
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| author | Chen, Zi-Jie Huang, Hongwei Sun, Lida Jie, Qing-Xuan Zhou, Jie Hua, Ziyue Xu, Yifang Wang, Weiting Guo, Guang-Can Zou, Chang-Ling Sun, Luyan Zou, Xu-Bo |
| author_facet | Chen, Zi-Jie Huang, Hongwei Sun, Lida Jie, Qing-Xuan Zhou, Jie Hua, Ziyue Xu, Yifang Wang, Weiting Guo, Guang-Can Zou, Chang-Ling Sun, Luyan Zou, Xu-Bo |
| contents | Recent advancements in quantum technologies have highlighted the importance of mitigating system imperfections, including parameter uncertainties and decoherence effects, to improve the performance of experimental platforms. However, most of the previous efforts in quantum control are devoted to the realization of arbitrary unitary operations in a closed quantum system. Here, we improve the algorithm that suppresses system imperfections and noises, providing notably enhanced scalability for robust and optimal control of open quantum systems. Through experimental validation in a superconducting quantum circuit, we demonstrate that our approach outperforms its conventional counterpart for closed quantum systems with an ultra-low infidelity of about $0.60\%$, while the complexity of this algorithm exhibits the same scaling, with only a modest increase in the prefactor. This work represents a notable advancement in quantum optimal control techniques, paving the way for realizing quantum-enhanced technologies in practical applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_05249 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Robust and optimal control of open quantum systems Chen, Zi-Jie Huang, Hongwei Sun, Lida Jie, Qing-Xuan Zhou, Jie Hua, Ziyue Xu, Yifang Wang, Weiting Guo, Guang-Can Zou, Chang-Ling Sun, Luyan Zou, Xu-Bo Quantum Physics Recent advancements in quantum technologies have highlighted the importance of mitigating system imperfections, including parameter uncertainties and decoherence effects, to improve the performance of experimental platforms. However, most of the previous efforts in quantum control are devoted to the realization of arbitrary unitary operations in a closed quantum system. Here, we improve the algorithm that suppresses system imperfections and noises, providing notably enhanced scalability for robust and optimal control of open quantum systems. Through experimental validation in a superconducting quantum circuit, we demonstrate that our approach outperforms its conventional counterpart for closed quantum systems with an ultra-low infidelity of about $0.60\%$, while the complexity of this algorithm exhibits the same scaling, with only a modest increase in the prefactor. This work represents a notable advancement in quantum optimal control techniques, paving the way for realizing quantum-enhanced technologies in practical applications. |
| title | Robust and optimal control of open quantum systems |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2603.05249 |