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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2503.13206 |
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| _version_ | 1866915551987630080 |
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| author | Zhang, Zhi-Da Song, Yao Dong, Wen-Zheng Deng, Xiu-Hao |
| author_facet | Zhang, Zhi-Da Song, Yao Dong, Wen-Zheng Deng, Xiu-Hao |
| contents | We introduce a generalized filter-function framework that treats noise coupling strength as a tunable control parameter, enabling target noise suppression across user-defined frequency bands. By optimizing this generalized filter function, we design band-selective control pulses that achieve $0.9999$ fidelity of single- and two-qubit gates under strong noise with diverse spectral profiles. We further extend the method to selectively enhance the signal-to-noise ratio for quantum sensing of AC signals with an enhanced precision of up to $10$ dB. The resulting control pulses are experimentally feasible, offering a practical pathway toward robust quantum operations and high-precision signal processing under spectrally complex noises. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_13206 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Enhanced Quantum Signal Control and Sensing Under Multicolored Noise via Generalized Filter Function Framework Zhang, Zhi-Da Song, Yao Dong, Wen-Zheng Deng, Xiu-Hao Quantum Physics Systems and Control We introduce a generalized filter-function framework that treats noise coupling strength as a tunable control parameter, enabling target noise suppression across user-defined frequency bands. By optimizing this generalized filter function, we design band-selective control pulses that achieve $0.9999$ fidelity of single- and two-qubit gates under strong noise with diverse spectral profiles. We further extend the method to selectively enhance the signal-to-noise ratio for quantum sensing of AC signals with an enhanced precision of up to $10$ dB. The resulting control pulses are experimentally feasible, offering a practical pathway toward robust quantum operations and high-precision signal processing under spectrally complex noises. |
| title | Enhanced Quantum Signal Control and Sensing Under Multicolored Noise via Generalized Filter Function Framework |
| topic | Quantum Physics Systems and Control |
| url | https://arxiv.org/abs/2503.13206 |