Complete hyperentangled Greenberger–Horne–Zeilinger state analysis for polarization and time-bin hyperentanglement  

作　　者：曾志 Zhi Zeng(Institute of Signal Processing and Transmission,Nanjing University of Posts and Telecommunications,Nanjing 210003,China;Key Laboratory of Broadband Wireless Communication and Sensor Network Technology,Ministry of Education,Nanjing University of Posts and Telecommunications,Nanjing 210003,China;School of Physics and Astronomy,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]Institute of Signal Processing and Transmission,Nanjing University of Posts and Telecommunications,Nanjing 210003,China [2]Key Laboratory of Broadband Wireless Communication and Sensor Network Technology,Ministry of Education,Nanjing University of Posts and Telecommunications,Nanjing 210003,China [3]School of Physics and Astronomy,Shanghai Jiao Tong University,Shanghai 200240,China

出　　处：《Chinese Physics B》2023年第6期122-126,共5页中国物理B（英文版）

摘　　要：We present an efficient scheme for the complete analysis of hyperentangled Greenberger–Horne–Zeilinger(GHZ)state in polarization and time-bin degrees of freedom with two steps. Firstly, the polarization GHZ state is distinguished completely and nondestructively, resorting to the controlled phase flip(CPF) gate constructed by the cavity-assisted interaction. Subsequently, the time-bin GHZ state is analyzed by using the preserved polarization entanglement. With the help of CPF gate and self-assisted mechanism, our scheme can be directly generalized to the complete N-photon hyperentangled GHZ state analysis, and it may have potential applications in the hyperentanglement-based quantum communication.

关 键 词：hyperentangled state analysis polarization-time-bin hyperentanglement controlled phase flip(CPF)gate 

分 类 号：O413[理学—理论物理] TN918[理学—物理]