CAJ | 학술논문

本文研究了基于一个带有多体相互作用（XZY -YZX型和XZX＋YZY型）的三比特XXX海森堡自旋链模型的量子隐形传态。首先求出该模型的本征值和本征态，然后再以它在热平衡态下的纠缠为量子信道进行隐形传态并求出保真度的表达式。分别分析了不带三体相互作用和仅带一种三体相互作用及同时带两种三体相互作用的XXX模型的保真度与外磁场和温度的关系，得知仅带有XZX＋YZY型三体相互作用的铁磁质海森堡XXX模型的隐形传态质量最好，并且工作时需要的外界磁场最小、温度相对较高，在实验上容易实现。
본문연구료기우일개대유다체상호작용（XZY -YZX형화XZX＋YZY형）적삼비특XXX해삼보자선련모형적양자은형전태。수선구출해모형적본정치화본정태，연후재이타재열평형태하적규전위양자신도진행은형전태병구출보진도적표체식。분별분석료불대삼체상호작용화부대일충삼체상호작용급동시대량충삼체상호작용적XXX모형적보진도여외자장화온도적관계，득지부대유XZX＋YZY형삼체상호작용적철자질해삼보XXX모형적은형전태질량최호，병차공작시수요적외계자장최소、온도상대교고，재실험상용역실현。
In this paper ,we study quantum teleportation by a channel of a three-qubit Heisenberg XXX ring with three-site interaction carefully .Firstly ,we calculate eigenvalues and eigenvectors of the mod-el ,and then we calculate the fidelity of quantum teleportation .Comparing with a XXX model without three-site interaction and with one kind of three-site interactions ,the model with XZX + YZY interac-tion is more successful in teleportation .By the channel of ferromagnetic XXX model with XZX +YZY type three-site interaction ,teleportation’s requirement for magnetic field is lower and for temperature is higher ,and it is easier to be realized in experiments .