Partial nonseparability of spin-orbit modes

被引：1

作者：

Lamego, V. S. ^{[1
,2
]}

Braga, D. G. ^{[1
,2
]}

Oliveira, L. S. ^{[1
,2
]}

Balthazar, W. F. ^{[2
,3
,4
]}

Huguenin, J. A. O. ^{[1
,2
]}

机构：

[1] Univ Fed Fluminense, Inst Ciencias Exatas, BR-27213145 Volta Redonda, RJ, Brazil

[2] Univ Fed Fluminense, Inst Fis, Ave Gal Milton Tavares de Souza S-N, BR-24210346 Niteroi, RJ, Brazil

[3] Inst Fed Rio Janeiro, BR-27213100 Volta Redonda, RJ, Brazil

[4] Int Iberian Nanotechnol Lab INL, Ave Mestre Jose Veiga, P-4715330 Braga, Portugal

来源：

JOURNAL OF OPTICS | 2023年 / 25卷 / 03期

基金：

欧盟地平线“2020”;

关键词：

spin-orbit modes; partial nonseparability; classical-quantum analogy;

D O I：

10.1088/2040-8986/acb36c

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Structured light plays an essential role in several quantum information protocols by using the degrees of freedom of light to encode qubits. For exploring different correlations, especially in mixed states, such as discord, it is necessary to prepare partially entangled states. In this work, we present a theoretical and experimental study of a partial nonseparable spin-orbit modes. By exploring classical-quantum analogy, we perform the measurement of the concurrence of partially separable modes directly from projective measurement of polarization. The results show a clear agreement with predictions of quantum theory for partially entangled states. We also perform a study of Clauser, Horn, Shimony, and Holt (CHSH) inequality and show that partial violation is observed in entire agreement with the expected by quantum theory. For the maximally nonseparable mode, we achieve a violation of S = 2.73 +/- 0.03

引用

页数：9

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