Robustness analysis in static and dynamic quantum state tomography
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866912762391691264 |
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| author | Chen, Alan Xiao, Shuixin Ma, Hailan Dong, Daoyi |
| author_facet | Chen, Alan Xiao, Shuixin Ma, Hailan Dong, Daoyi |
| contents | Quantum state tomography is a core task in quantum system identification. Real experimental conditions often deviate from nominal designs, introducing errors in both the measurement devices and the Hamiltonian governing the system's dynamics. In this paper, we investigate the robustness of quantum state tomography against such perturbations in both static and dynamic settings using linear regression estimation. We derive explicit bounds that quantify how bounded errors in the measurement devices and the Hamiltonian affect the mean squared error (MSE) upper bound in each scenario. Numerical simulations for qubit systems illustrate how these bounds scale with resources. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_12518 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Robustness analysis in static and dynamic quantum state tomography Chen, Alan Xiao, Shuixin Ma, Hailan Dong, Daoyi Quantum Physics Systems and Control Quantum state tomography is a core task in quantum system identification. Real experimental conditions often deviate from nominal designs, introducing errors in both the measurement devices and the Hamiltonian governing the system's dynamics. In this paper, we investigate the robustness of quantum state tomography against such perturbations in both static and dynamic settings using linear regression estimation. We derive explicit bounds that quantify how bounded errors in the measurement devices and the Hamiltonian affect the mean squared error (MSE) upper bound in each scenario. Numerical simulations for qubit systems illustrate how these bounds scale with resources. |
| title | Robustness analysis in static and dynamic quantum state tomography |
| topic | Quantum Physics Systems and Control |
| url | https://arxiv.org/abs/2512.12518 |