The tangled state of quantum hypothesis testing

Quantum hypothesis testing—the task of distinguishing quantum states—enjoys surprisingly deep connections with the theory of entanglement. Recent findings have reopened the biggest questions in hypothesis testing and reversible entanglement manipulation.

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Bibliographic Details
Published in:Nature physics 2024-02, Vol.20 (2), p.172-175
Main Authors: Berta, Mario, Brandão, Fernando G. S. L., Gour, Gilad, Lami, Ludovico, Plenio, Martin B., Regula, Bartosz, Tomamichel, Marco
Format: Article
Language:English
Subjects:
Entropy
Hypotheses
Hypothesis testing
Information theory
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Summary:Quantum hypothesis testing—the task of distinguishing quantum states—enjoys surprisingly deep connections with the theory of entanglement. Recent findings have reopened the biggest questions in hypothesis testing and reversible entanglement manipulation.
ISSN:1745-2473
1745-2481
DOI:10.1038/s41567-023-02289-9