Learning Quantum States and Unitaries of Bounded Gate Complexity

While quantum state tomography is notoriously hard, most states hold little interest to practically minded tomographers. Given that states and unitaries appearing in nature are of bounded gate complexity, it is natural to ask if efficient learning becomes possible. In this work, we prove that to lea...

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Bibliographic Details
Main Authors: Haimeng Zhao, Laura Lewis, Ishaan Kannan, Yihui Quek, Hsin-Yuan Huang, Matthias C. Caro
Format: Article
Language:English
Published: American Physical Society 2024-10-01
Series:PRX Quantum
Online Access:http://doi.org/10.1103/PRXQuantum.5.040306
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