Measuring the Tangle of Three-Qubit States

We present a quantum circuit that transforms an unknown three-qubit state into its canonical form, up to relative phases, given many copies of the original state. The circuit is made of three single-qubit parametrized quantum gates, and the optimal values for the parameters are learned in a variatio...

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Bibliographic Details
Main Authors: Adrián Pérez-Salinas, Diego García-Martín, Carlos Bravo-Prieto, José I. Latorre 
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:Entropy
Subjects:
Online Access:https://www.mdpi.com/1099-4300/22/4/436