Improved separability criteria via some classes of measurements

  • Shu-Qian ShenEmail author
  • Ming Li
  • Xianqing Li-Jost
  • Shao-Ming Fei


The entanglement detection via local measurements can be experimentally implemented. Based on mutually unbiased measurements and general symmetric informationally complete positive-operator-valued measures, we present separability criteria for bipartite quantum states, which, by theoretical analysis, are stronger than the related existing criteria via these measurements. Two detailed examples are supplemented to show the efficiency of the presented separability criteria.


Quantum states Entanglement detection Separability criteria 



The authors greatly indebted to the referee and the editor for their invaluable comments and suggestions. This work is supported by the Natural Science Foundation of Shandong Province (ZR2016AM23, ZR2016AQ06), the Fundamental Research Funds for the Central Universities (18CX02035A) and the NSF of China (11675113, 11775306).


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Shu-Qian Shen
    • 1
    Email author
  • Ming Li
    • 1
  • Xianqing Li-Jost
    • 2
  • Shao-Ming Fei
    • 2
    • 3
  1. 1.College of ScienceChina University of PetroleumQingdaoPeople’s Republic of China
  2. 2.Max-Planck-Institute for Mathematics in the SciencesLeipzigGermany
  3. 3.School of Mathematical SciencesCapital Normal UniversityBeijingPeople’s Republic of China

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