The exact evaluation of hexagonal spin-networks and topological quantum neural networks

• URL: http://arxiv.org/abs/2310.03632v2
• Date: Fri, 13 Oct 2023 03:14:32 GMT
• Title: The exact evaluation of hexagonal spin-networks and topological quantum neural networks
• Authors: Matteo Lulli, Antonino Marciano and Emanuele Zappala
• Abstract summary: We introduce an algorithm for the evaluation of the physical scalar product between spin-networks. We investigate the behavior of the evaluations on certain classes of spin-networks with the classical and quantum recoupling.
• Score: 0.5919433278490629
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The physical scalar product between spin-networks has been shown to be a fundamental tool in the theory of topological quantum neural networks (TQNN), which are quantum neural networks previously introduced by the authors in the context of quantum machine learning. However, the effective evaluation of the scalar product remains a bottleneck for the applicability of the theory. We introduce an algorithm for the evaluation of the physical scalar product defined by Noui and Perez between spin-network with hexagonal shape. By means of recoupling theory and the properties of the Haar integration we obtain an efficient algorithm, and provide several proofs regarding the main steps. We investigate the behavior of the TQNN evaluations on certain classes of spin-networks with the classical and quantum recoupling. All results can be independently reproduced through the "idea.deploy" framework~\href{https://github.com/lullimat/idea.deploy}{\nolinkurl{https://github.com/lullimat/idea.deploy}}

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