Quantum sensing in the presence of pulse errors and qubit leakage

• URL: http://arxiv.org/abs/2509.09874v1
• Date: Thu, 11 Sep 2025 21:57:06 GMT
• Title: Quantum sensing in the presence of pulse errors and qubit leakage
• Authors: David M. Lancaster, Muhammad Ali Shahbaz, Hamed Goli Yousefabad, Sanway Chatterjee, Eegan Ram, Jonathan D. Weinstein,
• Abstract summary: We show that quantum sensing can be affected by pulse errors in dramatically different ways than coherence times alone.<n>We also explore the effects of qubit leakage: off-resonant coupling to other quantum levels.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Using both simulation and experiment, we investigate the robustness of dynamical decoupling sequences to pulse errors: rotation errors and detuning errors. Whereas prior work examined the effect of errors on coherence times, here we show that quantum sensing can be affected by pulse errors in dramatically different ways than coherence times alone. We also explore the effects of qubit leakage: off-resonant coupling to other quantum levels. We find order-of-magnitude differences between commonly-used dynamical decoupling sequences in both their sensitivity to pulse errors and leakage.

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