Bernstein-Vazirani Networks: Quantum Machine Learning by Interference

• URL: http://arxiv.org/abs/2608.19043v1
• Date: Wed, 19 Aug 2026 15:35:37 GMT
• Title: Bernstein-Vazirani Networks: Quantum Machine Learning by Interference
• Abstract summary: Bernstein-Vazirani Networks (BVNs) is a non-variational quantum machine learning framework.<n>BVNs leverage quantum interference for supervised learning, demonstrated on vision and representation learning tasks.
• Score: 57.703235450585595
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We introduce Bernstein-Vazirani Networks (BVNs), a non-variational quantum machine learning framework that leverages quantum interference for supervised learning, demonstrated on vision and representation learning tasks. In their standard form, BVNs follow the principle of quantum Fourier sampling: labelled data are placed in superposition and interfered in the Fourier basis to extract globally informative features. We then define generalised BVNs that enable interference in problem-adapted bases, yielding more expressive models under the same measurement budget as in the standard setting. BVNs achieve universal function approximation through (over)complete interference bases, while training of BVNs is gradient-free. Experiments on synthetic and real-world classification tasks, as well as implicit image representation, show strong generalisation capabilities and competitive performance with classical and quantum baselines.

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