Research Article

Generation of large scale hyperentangled photonic GHZ states with an error-detected pattern

¹ Shanxi Institute of Technology, Yangquan, Shanxi 045000, P.R. China
² Department of Physics, Harbin Institute of Technology, Harbin, 150001, P.R. China
³ School of Physics and Information Engineering, Shanxi Normal University, Linfen, Shanxi 041004, P.R. China
⁴ College of Physics and Electronics Engineering, Shanxi University, Taiyuan, Shanxi 030006, P.R. China
⁵ School of Physics and Engineering, Zhengzhou University, Zhengzhou, 450052, P.R. China
⁶ Department of Physics, College of Science, Yanbian University, Yanji, Jilin 133002, P.R. China

^a e-mail: apliu@sxit.edu.cn, liuapeng928@163.com

Received: 23 October 2018
Received in final form: 9 March 2019
Published online: 11 June 2019

Abstract

We present a scheme for generating large-scale hyperentangled photonic GHZ states via a simple expansion mechanism. With the present scheme, a GHZ-type Bell pair can be created and an n-photon hyperentangled GHZ state can be expanded to a 2n-photon hyperentangled GHZ state with unit fidelity in principle. The scheme works in an error-detected pattern, it is robust against the unexpected physical errors, and can work in both the weak coupling and strong coupling regimes. Finally, we assess the feasibility of this scheme with currently achieved experimental parameters, showing that it is feasible with current experimental technology.