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Research questionHow can we tell whether hardware noise distorts a quantum-kernel Gram matrix in task-relevant ways?Hardware noise and finite-shot sampling alter pairwise kernel estimates, while similarity to an exact reference may not reveal whether the kernel preserves task-relevant structure.
Evaluation & Benchmarks
Machine Learning
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Statistical Machine Learning
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Latest papersRecent research connected to this question, newest first.Statevector-to-Hardware Reconstruction of a Four-Qubit ZZ Quantum Kernel: A Single-Backend Case Study of Three Execution JobsEvidence is limited to one frozen four-qubit ZZ feature map, 24 indoor air-quality windows, and three complete 1024-shot jobs on ibm_fez: baseline, dynamical decoupling alone, and gate twirling alone. The study compares hardware Gram matrices with an exact statevector reference using geometry and alignment diagnostics; it does not support mitigation-efficacy, classifier-superiority, forecasting, quantum-advantage, or broader generalization claims.research paper · Sep 3, 2026
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