Mitigating Measurement Crosstalk via Pulse Shaping
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arXiv
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| Main Authors: | , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866909985264369664 |
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| author | Gao, Yang Li, Feiyu Liu, Yang Yang, Zhen Ding, Jiayu Nuerbolati, Wuerkaixi Wang, Ruixia Su, Tang Ma, Yanjun Jin, Yirong Yu, Haifeng Wang, He Yan, Fei |
| author_facet | Gao, Yang Li, Feiyu Liu, Yang Yang, Zhen Ding, Jiayu Nuerbolati, Wuerkaixi Wang, Ruixia Su, Tang Ma, Yanjun Jin, Yirong Yu, Haifeng Wang, He Yan, Fei |
| contents | Quantum error correction protocols require rapid and repeated qubit measurements. While multiplexed readout in superconducting quantum systems improves efficiency, fast probe pulses introduce spectral broadening, leading to signal leakage into neighboring readout resonators. This crosstalk results in qubit dephasing and degraded readout fidelity. Here, we introduce a pulse shaping technique inspired by the derivative removal by adiabatic gate (DRAG) protocol to suppress measurement crosstalk during fast readout. By engineering a spectral notch at neighboring resonator frequencies, the method effectively mitigates spurious signal interference. Our approach integrates seamlessly with existing readout architectures, enabling fast, low-crosstalk multiplexed measurements without additional hardware overhead - a critical advancement for scalable quantum computing. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_05437 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Mitigating Measurement Crosstalk via Pulse Shaping Gao, Yang Li, Feiyu Liu, Yang Yang, Zhen Ding, Jiayu Nuerbolati, Wuerkaixi Wang, Ruixia Su, Tang Ma, Yanjun Jin, Yirong Yu, Haifeng Wang, He Yan, Fei Quantum Physics Quantum error correction protocols require rapid and repeated qubit measurements. While multiplexed readout in superconducting quantum systems improves efficiency, fast probe pulses introduce spectral broadening, leading to signal leakage into neighboring readout resonators. This crosstalk results in qubit dephasing and degraded readout fidelity. Here, we introduce a pulse shaping technique inspired by the derivative removal by adiabatic gate (DRAG) protocol to suppress measurement crosstalk during fast readout. By engineering a spectral notch at neighboring resonator frequencies, the method effectively mitigates spurious signal interference. Our approach integrates seamlessly with existing readout architectures, enabling fast, low-crosstalk multiplexed measurements without additional hardware overhead - a critical advancement for scalable quantum computing. |
| title | Mitigating Measurement Crosstalk via Pulse Shaping |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2509.05437 |