Work

Experimental violation of the local realism for four-qubit Dicke state

Year: 2015

Type: article

Abstract: Dicke state is an widely used type of multi-particle entangled state in quantum information. However, very few works have been done on its nonlocality. Here we prepare a four-photon symmetric Dicke state, whose fidelity is as high as 0.904 ± 0.004, and devise a simple Bell-type inequality to demonstrate that it violates the local realism with 12 standard deviation.

Source: Optics Express

DOI: 10.1364/oe.23.030491

Authors: Yuan-Yuan Zhao, Yu-Chun Wu, Guo-Yong Xiang, Chuan-Feng Li, Guang-Can Guo

Institutions: University of Science and Technology of China, CAS Key Laboratory of Quantum Information, USTC

Language: English

Topic: Quantum Mechanics and Applications

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funders: National Natural Science Foundation of China, Chinese Academy of Sciences, National Key Research and Development Program of China, Fundamental Research Funds for the Central Universities