Detection Power of Separability Criteria Based on a Correlation Tensor: A Case Study

被引：3

作者：

Sarbicki, Gniewomir ^{[1
]}

Scala, Giovanni ^{[2
,3
,4
,5
]}

Chruscinski, Dariusz ^{[1
]}

机构：

[1] Nicolaus Copernicus Univ, Fac Phys Astron & Informat, Inst Phys, Grudziadzka 5-7, PL-87100 Torun, Poland

[2] Univ Bari, Dipartimento Interateneo Fis, I-70126 Bari, Italy

[3] Ist Nazl Fis Nucl, Sez Bari, I-70125 Bari, Italy

[4] Univ Gdansk, Int Ctr Theory Quantum Technol ICTQT, Wita Stwosza 63, PL-80308 Gdansk, Poland

[5] Univ Warsaw, Fac Phys, Pasteura 5, PL-02093 Warsaw, Poland

来源：

OPEN SYSTEMS & INFORMATION DYNAMICS | 2021年 / 28卷 / 02期

关键词：

Entanglement detection; SIC-POVMs; realignment criterion; entanglement witness; QUANTUM STATES; ENTANGLEMENT;

D O I：

10.1142/S1230161221500104

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

Detection power of separability criteria based on a correlation tensor is tested within a family of generalized isotropic states in d(1) circle times d(2). For d(1) <= d(2) all these criteria are weaker than the positive partial transposition (PPT) criterion. Interestingly, our analysis supports the recent conjecture that a criterion based on symmetrically informationally complete positive operator-valued measure (SIC-POVMs) is stronger than realignment criterion.

引用

页数：14

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