Emergence of global receptive fields capturing multipartite quantum correlations

• URL: http://arxiv.org/abs/2408.13033v1
• Date: Fri, 23 Aug 2024 12:45:40 GMT
• Title: Emergence of global receptive fields capturing multipartite quantum correlations
• Authors: Oleg M. Sotnikov, Ilia A. Iakovlev, Evgeniy O. Kiktenko, Mikhail I. Katsnelson, Aleksey K. Fedorov, Vladimir V. Mazurenko,
• Abstract summary: In quantum physics, even simple data with a well-defined structure at the wave function level can be characterized by extremely complex correlations. We show that monitoring the neural network weight space while learning quantum statistics allows to develop physical intuition about complex multipartite patterns. Our findings suggest a fresh look at constructing convolutional neural networks for processing data with non-local patterns.
• Score: 0.565473932498362
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In quantum physics, even simple data with a well-defined structure at the wave function level can be characterized by extremely complex correlations between its constituent elements. The inherent non-locality of the quantum correlations generally prevents one from providing their simple and transparent interpretation, which also remains a challenging problem for advanced classical techniques that approximate quantum states with neural networks. Here we show that monitoring the neural network weight space while learning quantum statistics from measurements allows to develop physical intuition about complex multipartite patterns and thus helps to construct more effective classical representations of the wave functions. Particularly, we observe the formation of distinct global convolutional structures, receptive fields in the hidden layer of the Restricted Boltzmann Machine (RBM) within the neural quantum tomography of the highly-entangled Dicke states. On this basis we propose an exact two-parameter classical representation not only for a specific quantum wave function, but for the whole family of the N-qubit Dicke states of different entanglement. Our findings suggest a fresh look at constructing convolutional neural networks for processing data with non-local patterns and pave the way for developing exact learning-based representations of entangled quantum states.

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