Quantum Machine Learning for Industrial Applications

• URL: http://arxiv.org/abs/2606.14822v1
• Date: Fri, 12 Jun 2026 12:45:00 GMT
• Title: Quantum Machine Learning for Industrial Applications
• Abstract summary: In this thesis, the theoretical foundations of Quantum Machine Learning are investigated, with a focus on near-term and future practical applications.<n>Subspace-preserving QML algorithms are introduced, including photonic circuits and quantum convolutional neural networks, and are designed to mimic classical ML subroutines.<n>These contributions are intended to advance the theoretical roadmap for harnessing near-term and future quantum technologies in real-world applications.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Recent advances in Machine Learning have transformed numerous industrial sectors, yet classical paradigms face fundamental limitations: rapidly growing data volumes, rising computational costs, significant energy consumption, and the physical scaling limits of conventional hardware architectures. Quantum computing has emerged as a promising computational paradigm to address these challenges, giving rise to the field of Quantum Machine Learning (QML). In this thesis, the theoretical foundations of QML are investigated, with a focus on near-term and future practical applications. Three central challenges are addressed: the trainability of variational quantum circuits, their expressivity, and their resistance to efficient classical simulation. The trainability of Hamming-weight preserving variational quantum circuits is first studied, and theoretical guarantees are established that resolve an open conjecture on the absence of barren plateaus for this circuit family. Subspace-preserving QML algorithms are then introduced, including photonic circuits and quantum convolutional neural networks, and are designed to mimic classical ML subroutines while offering polynomial quantum advantage. Finally, variational quantum circuits are analyzed as quantum Fourier models, and a framework is derived to jointly characterize expressivity and trainability, from which conditions are obtained under which quantum models provably separate from their classical counterparts. These contributions are intended to advance the theoretical roadmap for harnessing near-term and future quantum technologies in real-world applications.

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