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.
@article{arxiv.2509.05437,
title = {Mitigating Measurement Crosstalk via Pulse Shaping},
author = {Yang Gao and Feiyu Li and Yang Liu and Zhen Yang and Jiayu Ding and Wuerkaixi Nuerbolati and Ruixia Wang and Tang Su and Yanjun Ma and Yirong Jin and Haifeng Yu and He Wang and Fei Yan},
journal= {arXiv preprint arXiv:2509.05437},
year = {2026}
}