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On quantum neural networks

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arxiv 2104.07106 v1 pith:A56URX6Z submitted 2021-04-12 quant-ph

classification quant-ph
keywords quantumneuralnetworknetworksuniversearguecombinescomputing
verification ladder T0 review T1 audit T2 compute T3 formal
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The early definition of a quantum neural network as a new field that combines the classical neurocomputing with quantum computing was rather vague and satisfactory in the 2000s. The widespread in 2020 modern definition of a quantum neural network as a model or machine learning algorithm that combines the functions of quantum computing with artificial neural networks deprives quantum neural networks of their fundamental importance. We argue that the concept of a quantum neural network should be defined in terms of its most general function as a tool for representing the amplitude of an arbitrary quantum process. Our reasoning is based on the use of the Feynman path integral formulation in quantum mechanics. This approach has been used in many works to investigate the main problem of quantum cosmology, such as the origin of the Universe. In fact, the question of whether our Universe is a quantum computer was posed by Seth Lloyd, who gave the answer is yes, but we argue that the universe can be thought of as a quantum neural network.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Assessing the Advantages and Limitations of Quantum Neural Networks in Regression Tasks

    quant-ph 2025-08 conditional novelty 4.0 of 10

    Quantum neural networks strongly outperform narrow classical networks on smooth function regression, but the advantage depends on comparison design and disappears on discontinuous functions.

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