Journal
NPJ QUANTUM INFORMATION
Volume 7, Issue 1, Pages -Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41534-021-00456-5
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This study combines state-of-the-art algorithms and quantum hardware to provide an experimental demonstration of a quantum machine learning application with provable guarantees for its performance and efficiency. The researchers designed a quantum Nearest Centroid classifier and experimentally demonstrated its accuracy on a 11-qubit trapped-ion quantum machine, achieving up to 100% accuracy for 8-dimensional synthetic data.
Quantum machine learning has seen considerable theoretical and practical developments in recent years and has become a promising area for finding real world applications of quantum computers. In pursuit of this goal, here we combine state-of-the-art algorithms and quantum hardware to provide an experimental demonstration of a quantum machine learning application with provable guarantees for its performance and efficiency. In particular, we design a quantum Nearest Centroid classifier, using techniques for efficiently loading classical data into quantum states and performing distance estimations, and experimentally demonstrate it on a 11-qubit trapped-ion quantum machine, matching the accuracy of classical nearest centroid classifiers for the MNIST handwritten digits dataset and achieving up to 100% accuracy for 8-dimensional synthetic data.
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