Spin Squeezing Inequalities for Arbitrary Spin

被引：84

作者：

Vitagliano, Giuseppe ^{[1
]}

Hyllus, Philipp ^{[1
]}

Egusquiza, Inigo L. ^{[1
]}

Toth, Geza ^{[1
,2
,3
]}

机构：

[1] Univ Basque Country, Dept Theoret Phys, E-48080 Bilbao, Spain

[2] Basque Fdn Sci, IKERBASQUE, E-48011 Bilbao, Spain

[3] Hungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 24期

关键词：

MULTIPARTITE ENTANGLEMENT; STATES; SEPARABILITY;

D O I：

10.1103/PhysRevLett.107.240502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We determine the complete set of generalized spin squeezing inequalities, given in terms of the collective angular momentum components, for particles with an arbitrary spin. They can be used for the experimental detection of entanglement in an ensemble in which the particles cannot be individually addressed. We also present a large set of criteria involving collective observables different from the angular momentum coordinates. We show that some of the inequalities can be used to detect k-particle entanglement and bound entanglement.

引用

页数：4

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