Pulsed learning for quantum data re-uploading models

• URL: http://arxiv.org/abs/2512.10670v1
• Date: Thu, 11 Dec 2025 14:16:54 GMT
• Title: Pulsed learning for quantum data re-uploading models
• Authors: Ignacio B. Acedo, Pablo Rodriguez-Grasa, Pablo Garcia-Azorin, Javier Gonzalez-Conde,
• Abstract summary: We formulate a pulse-based variant of data re-uploading, embedding trainable parameters directly into the native system's dynamics.<n>We benchmark our approach on a simulated superconducting transmon processor with realistic noise profiles.<n>The pulse-based model consistently outperforms its gate-based counterpart, exhibiting higher test accuracy and improved generalization.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: While Quantum Machine Learning (QML) holds great potential, its practical realization on Noisy Intermediate-Scale Quantum (NISQ) hardware has been hindered by the limitations of variational quantum circuits (VQCs). Recent evidence suggests that VQCs suffer from severe trainability and noise-related issues, leading to growing skepticism about their long-term viability. However, the possibility of implementing learning models directly at the pulse-control level remains comparatively unexplored and could offer a promising alternative. In this work, we formulate a pulse-based variant of data re-uploading, embedding trainable parameters directly into the native system's dynamics. We benchmark our approach on a simulated superconducting transmon processor with realistic noise profiles. The pulse-based model consistently outperforms its gate-based counterpart, exhibiting higher test accuracy and improved generalization under equivalent noise conditions. Moreover, by systematically increasing noise strength, we show that pulse-level implementations retain higher fidelity for longer, demonstrating enhanced resilience to decoherence and control errors. These results suggest that pulse-native architectures, though less explored, may offer a viable and hardware-aligned path forward for practical QML in the NISQ era.

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