Experimental multilocation remote state preparation
Experimental multilocation remote state preparation
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DOI：
10.1103/physreva.88.032304
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发表时间：
2013-04
影响因子：
2.9
通讯作者：
Magnus R̊admark;M. Wiesniak;M. Żukowski;M. Bourennane
中科院分区：
文献类型：
--
作者：
Magnus R̊admark;M. Wiesniak;M. Żukowski;M. Bourennane
量子态的传输是量子信息科学的中心任务。远程状态准备（RSP）与隐形传态具有相同的目标，即，- 在不物理地发送信息载体的情况下传输量子信息，但是在RSP中，发送者知道要被传输的状态。我们提出了两个和三个位置的RSP的实验演示。在我们的实验方案中，Alice（发现者）和她的三个伙伴共享四个和六个光子偏振纠缠单态。这允许我们对单量子位状态、双量子位Bell状态和三量子位W或（W）over bar状态的两个或三个副本执行RSP。讨论了制备两量子比特非最大纠缠态和GHZ态的可能性。我们的方案的一个显着特点是能够远程准备一个纠缠态的本地投影在爱丽丝。
Transmission of quantum states is a central task in quantum information science. Remote state preparation (RSP) has the same goal as teleportation, i.e., transferring quantum information without sending physically the information carrier, but in RSP the sender knows the state which is to be transmitted. We present experimental demonstrations of RSP for two and three locations. In our experimental scheme Alice (the preparer) and her three partners share four and six photon polarization entangled singlets. This allows us to perform RSP of two or three copies of a single-qubit state, a two-qubit Bell state, and a three-qubit W, or (W) over bar state. A possibility to prepare two-qubit nonmaximally entangled and GHZ states is also discussed. The ability to remotely prepare an entangled states by local projections at Alice is a distinguishing feature of our scheme.