Entanglement witnesses from mutually unbiased measurements

Abstract 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 char...

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Bibliographic Details
Main Authors: Katarzyna Siudzińska, Dariusz Chruściński
Format: article
Language:EN
Published: Nature Portfolio 2021
Subjects:
R
Q
Online Access:https://doaj.org/article/4823787ce3024686ba9856cc494b4bc1
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