Mixedness, Coherence and Entanglement in a Family of Three-Qubit States

We consider a family of states describing three-qubit systems. We derived formulas showing the relations between linear entropy and measures of coherence such as degree of coherence, first- and second-order correlation functions. We show that qubit–qubit states are strongly entangled when linear ent...

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Bibliographic Details
Published in:	Entropy
Main Authors:	Joanna K. Kalaga, Wiesław Leoński, Radosław Szczȩśniak, Jan Peřina
Format:	Article
Language:	English
Published:	MDPI AG 2022-02-01
Subjects:	quantum entanglement linear entropy coherence purity of states concurrence three-qubit systems
Online Access:	https://www.mdpi.com/1099-4300/24/3/324

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