Entanglement witnesses from mutually unbiased measurements

Entanglement witnesses from mutually unbiased measurements

A new family of positive, trace-preserving maps is introduced. It is defined using the mutually unbiased measurements, which generalize the notion of mutual unbiasedness of orthonormal bases. This family allows one to define entanglement witnesses whose indecomposability depends on the characteristi...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Scientific reports 2021-11, Vol.11 (1), p.22988-22988, Article 22988
Hauptverfasser: Siudzińska, Katarzyna, Chruściński, Dariusz
Format: Artikel
Sprache:eng
Schlagworte:
639/766/259
639/766/483
Humanities and Social Sciences
Information theory
multidisciplinary
Science
Science (multidisciplinary)
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A new family of positive, trace-preserving maps is introduced. It is defined using the mutually unbiased measurements, which generalize the notion of mutual unbiasedness of orthonormal bases. This family allows one to define entanglement witnesses whose indecomposability depends on the characteristics of the associated measurement operators. We provide examples of indecomposable witnesses and compare their entanglement detection properties with the realignment criterion.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-021-02356-2