Optimal fidelity estimation for density matrix

Abstract Fidelity estimation is a necessary tool for evaluating noise in quantum measurement and quantum computation. The traditional fidelity estimation is to calculate the distance between two density matrices by employing direct fidelity estimation, which consumes too much copies of state. To red...

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Bibliographic Details
Main Authors: Yiping Lu, Liyu Lai, Jun Xiang, Yuhan Dai, Ying Zeng, Qi Li
Format: Article
Language:English
Published: Nature Portfolio 2024-12-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-024-82168-2
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