New light fields based on integration theory within the Weyl ordering product of operators  

作　　者：张科 李兰兰 郭大伟 范洪义 Ke Zhang;Lan-Lan Li;Da-Wei Guo;Hong-Yi Fan(School of Electronic Engineering,Huainan Normal University,Huainan 232038,China;Department of Material Science and Engineering,University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]School of Electronic Engineering,Huainan Normal University,Huainan 232038,China [2]Department of Material Science and Engineering,University of Science and Technology of China,Hefei 230026,China

出　　处：《Chinese Physics B》2023年第4期160-164,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant No.11775208);the Foundation for Young Talents in College of Anhui Province,China(Grant Nos.gxyq2021210 and gxyq2019077);the Natural Science Foundation of the Anhui Higher Education Institutions of China(Grant Nos.KJ2020A0638 and 2022AH051586)。

摘　　要：The development of quantum optics theory based on the method of integration within an ordered product of operators(IWOP)has greatly stimulated the study of quantum states in the light field,especially non-Gaussian states with various non-classical properties.In this paper,the two-mode squeezing operator is derived with integral theory within the Weyl ordering product of operators using a combinatorial field in which one mode is a chaotic field and the other mode is a vacuum field.The density operator of the new light field,its entanglement property and photon number distribution are analyzed.We also note that tracing a three-mode pure state can yield this new light field.These methods represent a theoretical approach to investigating new density operators of light fields.

关 键 词：integration within an ordered product of operators two-mode squeezing operator Weyl ordering entanglement property 

分 类 号：O431.2[机械工程—光学工程]