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Title: Towards quantum machine learning with tensor networks

Journal Article · · Quantum Science and Technology

Machine learning is a promising application of quantum computing, but challenges remain for implementation today because near-term devices have a limited number of physical qubits and high error rates. Motivated by the usefulness of tensor networks for machine learning in the classical context, we propose quantum computing approaches to both discriminative and generative learning, with circuits based on tree and matrix product state tensor networks, that could already have benefits with such near-term devices. The result is a unified framework in which classical and quantum computing can benefit from the same theoretical and algorithmic developments, and the same model can be trained classically then transferred to the quantum setting for additional optimization. Tensor network circuits can also provide qubit-efficient schemes in which, depending on the architecture, the number of physical qubits required scales only logarithmically with, or independently of the input or output data sizes. Here, we demonstrate our proposals with numerical experiments, training a discriminative model to perform handwriting recognition using a hybrid quantum-classical optimization procedure that could be carried out on quantum hardware today, and testing the noise resilience of the trained model.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR) (SC-21); National Institutes of Health (NIH)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1604671
Journal Information:
Quantum Science and Technology, Journal Name: Quantum Science and Technology Journal Issue: 2 Vol. 4; ISSN 2058-9565
Publisher:
IOPscienceCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (12)

Hierarchical quantum classifiers journal December 2018
Quantum convolutional neural networks journal August 2019
Parameterized quantum circuits as machine learning models journal October 2019
Learning and inference on generative adversarial quantum circuits journal May 2019
Generative tensor network classification model for supervised machine learning journal February 2020
Variational quantum eigensolver with fewer qubits journal September 2019
Differentiable Programming Tensor Networks journal September 2019
Matrix Product State–Based Quantum Classifier journal July 2019
Tensor-Based Algorithms for Image Classification journal November 2019
Learning and Inference on Generative Adversarial Quantum Circuits text January 2018
Variational Quantum Eigensolver with Fewer Qubits text January 2019
Parameterized quantum circuits as machine learning models text January 2019