Quantum Noise Suppression at Scale with Crosstalk-Robust Gate Sets

• URL: http://arxiv.org/abs/2603.15758v1
• Date: Mon, 16 Mar 2026 18:00:23 GMT
• Title: Quantum Noise Suppression at Scale with Crosstalk-Robust Gate Sets
• Abstract summary: We introduce crosstalk-robust gate sets, which are obtained using a novel, scalable optimal control problem exploiting locality.<n>Through the suppression of pairwise quantum crosstalk, the gate sets enable robustness that extends to multi-qubit circuits.<n>We provide the first known assessment of the impact of complete optimal control gate sets on quantum algorithms.
• Score: 1.4302720665991904
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We introduce crosstalk-robust gate sets, which are obtained using a novel, scalable optimal control problem exploiting locality. Through the suppression of pairwise quantum crosstalk, the gate sets enable robustness that extends to multi-qubit circuits. The IBM Quantum Platform devices provide a testbed for our gate sets, where we study their efficacy via error suppression protocols and randomized parallel single-qubit circuits of up to eight qubits. Furthermore, we provide the first known assessment of the impact of complete optimal control gate sets on quantum algorithms. Using a Hamiltonian simulation of a four-qubit transverse field Ising model, we show that noise-informed gates enhance median algorithmic performance by a factor of four over baseline Gaussian gates using the same calibration procedures. Lastly, we provide numerical evidence that optimized gate sets enable larger qubit-qubit coupling strengths that can cut two-qubit gate times in half. This result confirms that hardware-software co-design using quantum optimal control can create new opportunities for quantum computing architectures.

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