任意单光子两自由度量子态的概率远程制备  

Probabilistic Remote Preparation of an Arbitrary Single-photon State in Two Degrees of Freedom

作　　者：王美玉[1] 郝全枝 付亮雪 邸冰[1] WANG Meiyu;HAO Quanzhi;FU Liangxue;DI Bing(College of Physics,Hebei Normal University,Hebei Shijiazhuang 050024,China;Deparment of Basic Courses,Hebei Vocational University of Technology and Engineering,Hebei Xingtai 054000,China)

机构地区：[1]河北师范大学物理学院,河北石家庄050024 [2]河北科技工程职业技术大学基础课部,河北邢台054000

出　　处：《河北师范大学学报（自然科学版）》2022年第1期27-32,共6页Journal of Hebei Normal University：Natural Science

基　　金：国家自然科学基金(11805050);河北省自然科学基金(A2019205190);河北师范大学科研基金(L2021B13)。

摘　　要：量子态远程制备为量子信息的传输提供了一种有效的方法.基于共享的部分超纠缠Bell态,提出了任意单光子极化-时间自由度量子态的远程制备方案.发送方根据待制备的量子态信息对手中光子进行幺正操作,通过单光子投影测量和单向经典通信帮助接收方制备出初始量子态,并给出了该方案的成功概率.Remote state preparation(RSP)provides an effective method for quantum information transmission.Based on the shared partially hyper-entangled Bell state,we present a technique for remotely preparing an arbitrary single-photon state in polarization-temporal degree of freedom between two distant nodes.In the preparation process,the sender will perform unitary operations on her hyper-entangled photon according to her knowledge of the state to be transmitted.By making a single-photon projective measurement on the sender′s photon and one-way classical communication,the target state can be reconstructed at the remote receiver′s quantum system.Moreover,the success probability of our RSP is calculated.

关 键 词：超纠缠Bell态 远程态制备 幺正操作 投影测量 

分 类 号：O41[理学—理论物理]