Deterministic generation of large-scale hyperentanglement in three degrees of freedom  

作　　者：Xutong Wang Sheng Yu Shengshuai Liu Kai Zhang Yanbo Lou Wei Wang Jietai Jing 

机构地区：[1]East China Normal University,Joint Institute of Advanced Science and Technology,School of Physics and Electronic Science,State Key Laboratory of Precision Spectroscopy,Shanghai,China [2]CAS Center for Excellence in Ultra-intense Laser Science,Shanghai,China [3]Zhejiang University,Department of Physics,Hangzhou,China [4]Shanxi University,Collaborative Innovation Center of Extreme Optics,Taiyuan,China

出　　处：《Advanced Photonics Nexus》2022年第1期31-37,共7页先进光子学通讯（英文）

基　　金：the Innovation Program of Shanghai Municipal Education Commission(Grant No.2021-01-07-00-08-E00100);the National Natural Science Foundation of China(Grant Nos.11874155,91436211,11374104,and 12174110);the Basic Research Project of Shanghai Science and Technology Commission(Grant No.20JC1416100);the Natural Science Foundation of Shanghai(17ZR1442900);the Minhang Leading Talents(Grant No.201971);the Program of Scientific and Technological Innovation of Shanghai(Grant No.17JC1400401);the Shanghai Sailing Program(Grant No.21YF1410800);the National Basic Research Program of China(Grant No.2016YFA0302103);the Shanghai Municipal Science and Technology Major Project(Grant No.2019SHZDZX01);the 111 Project(Grant No.B12024).

摘　　要：Entanglement serves as a fundamental resource for quantum information protocols,and hyperentanglement has received an increasing amount of attention for its high-capacity characteristic.Increasing the scale of hyperentanglement,i.e.,the number of modes in a hyperentangled system,is crucial for enhancing its capability in quantum information processing.Here,we demonstrate the generation of large-scale continuous-variable(CV)hyperentanglement in three degrees of freedom(DOFs),including azimuthal and radial indices of Laguerre–Gaussian(LG)modes and frequency.In our experiment,216 pairs of hyperentangled modes are deterministically generated from the four-wave mixing process in an atomic vapor.In addition,we show that the entanglement between coherent LG superposition modes denoted by both azimuthal and radial quantum numbers can also be generated from this system.Such large-scale CV hyperentanglement in three DOFs presents an efficient scheme to significantly increase the information capacity of the CV system.Our results provide a new platform for studying CV quantum information and open the avenue for constructing high-capacity parallel and multiple-DOF CV quantum information protocols.

关 键 词：hyperentanglement MULTIPLEXING orbital angular momentum quantum optics structured light 

分 类 号：O41[理学—理论物理]