Experimental certification of the steering criterion based on a general entropic uncertainty relation

被引：16

作者：

Yang, Huan ^{[1
,2
,3
,4
]}

Ding, Zhi-Yong ^{[1
,5
,6
]}

Wang, Dong ^{[1
,7
]}

Yuan, Hao ^{[1
,7
,8
]}

Song, Xue-Ke ^{[1
]}

Yang, Jie ^{[1
]}

Zhang, Chang-Jin ^{[2
,3
]}

Ye, Liu ^{[1
]}

机构：

[1] Anhui Univ, Sch Phys & Mat Sci, Hefei 230601, Peoples R China

[2] Anhui Univ, Inst Phys Sci, Hefei 230601, Peoples R China

[3] Anhui Univ, Inst Informat Technol, Hefei 230601, Peoples R China

[4] West Anhui Univ, Dept Expt & Pract Training Management, Luan 237012, Peoples R China

[5] Fuyang Normal Univ, Sch Phys & Elect Engn, Fuyang 236037, Peoples R China

[6] Fuyang Normal Univ, Key Lab Funct Mat & Devices Informat Anhui Educ I, Fuyang 236037, Peoples R China

[7] Univ Sci & Technol China, CAS Key Lab Quantum Informat, Hefei 230026, Peoples R China

[8] Anhui Univ, Key Lab Optoelect Informat Acquisit & Manipulat, Minist Educ, Hefei 230601, Peoples R China

来源：

PHYSICAL REVIEW A | 2020年 / 101卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevA.101.022324

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Quantum steering describes a phenomenon whereby one system can immediately influence another via local measurements. It can be detected by violating the powerful and useful steering criterion based on a general entropic uncertainty relation. This criterion can be straightforwardly evaluated by using probability distributions from a finite set of measurements. Herein, we experimentally verify the steering criterion by means of the two-photon Werner-like states and three Pauli measurements. The results indicate that quantum steering can be captured by the criterion in a convenient way. In particular, there is no need to perform the usual quantum state tomography in the experiment, which greatly reduces experimental resources. Moreover, we demonstrate that the criterion is stronger than the linear one for detecting quantum steering of the Werner-like states.

引用

页数：6