Hexapartite Entanglement in an above-Threshold Optical Parametric Oscillator

被引：39

作者：

Barbosa, F. A. S. ^{[1
]}

Coelho, A. S. ^{[2
,3
]}

Munoz-Martinez, L. F. ^{[4
]}

Ortiz-Gutierrez, L. ^{[5
]}

Villar, A. S. ^{[6
]}

Nussenzveig, P. ^{[7
]}

Martinelli, M. ^{[7
]}

机构：

[1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083859 Campinas, SP, Brazil

[2] Univ Fed Piaui, Dept Engn Mecan, BR-64049550 Teresina, Piaui, Brazil

[3] Ctr Univ UNINOVAFAPI, Dept Engn, BR-64073505 Teresina, Piaui, Brazil

[4] Univ Sinu Elias Bechara Zainum, Dept Ciencias Basicas, 1w 38-153, Cordoba, Colombia

[5] Univ Sao Paulo, Inst Fis Sao Carlos, POB 369, BR-13560970 Sao Carlos, SP, Brazil

[6] Amer Phys Soc, 1 Res Rd, Ridge, NY 11961 USA

[7] Univ Sao Paulo, Inst Fis, POB 66318, BR-05315970 Sao Paulo, Brazil

来源：

PHYSICAL REVIEW LETTERS | 2018年 / 121卷 / 07期

基金：

巴西圣保罗研究基金会;

关键词：

QUANTUM-MECHANICAL DESCRIPTION; SEPARABILITY CRITERION; PHYSICAL REALITY; STATES; PHASE; CONVERSION;

D O I：

10.1103/PhysRevLett.121.073601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate, theoretically and experimentally, the generation of hexapartite modal entanglement by the optical parametric oscillator (OPO) operating above the oscillation threshold. We show that the OPO generates a rich structure of entanglement among sets of six optical sideband modes interacting through the nonlinear crystal. The class of quantum states thus produced can be controlled by a single parameter, the power of the external laser that pumps the system. Our platform allows for the generation of massive entanglement among many optical modes with well defined hut vastly different frequencies, potentially bridging nodes of a multicolor quantum network.

引用

页数：5

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