Entanglement detection by Bragg scattering

被引：5
|
作者：
Macchiavello, Chiara [1 ,2 ]
Morigi, Giovanna [3 ]
机构：
[1] Univ Pavia, Dipartimento Fis, I-27100 Pavia, Italy
[2] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy
[3] Univ Saarland, D-66123 Saarbrucken, Germany
来源：
PHYSICAL REVIEW A | 2013年 / 87卷 / 04期
关键词：
QUANTUM; WITNESS;
D O I：
10.1103/PhysRevA.87.044301
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We show how to measure the structural witnesses proposed previously [P. Krammer et al., Phys. Rev. Lett. 103, 100502 (2009)] for detecting entanglement in a spin chain using photon scattering. The procedure allows one to measure the two-point correlation function of the spin array. This proposal could be performed in existing experimental platforms, realizing ion chains in Paul traps or atomic arrays in optical lattices. DOI: 10.1103/PhysRevA.87.044301
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页数：4
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