论文标题
量子传送与从宣传量子状态准备的混合纠缠资源
Quantum teleportation with hybrid entangled resources prepared from heralded quantum states
论文作者
论文摘要
在这项工作中，我们提出了从实验可行的观点中生成混合纠缠的资源（她），并在量子传送方案中进一步应用。她制备的来源是基于光子晶体纤维中的四个波混合过程，其输出双方状态的一个方案用于预示单个光子或单个光子添加的相干状态。从预言状态和线性光学器件中，她的创建。在拟议的传送协议中，Bob使用HE来传送具有不同光谱特性的量子。鲍勃在单个光子基础上进行了铃铛测量，并以平均量子传送保真度来表征该方案。期望在宽光谱范围内的量子位接近一个。这项工作还包括有关对其产生的介质的几何特性的忠诚度依赖性的讨论。一个重要的说法是，在预示过程中没有使用光谱过滤，这强调了该方案的可行性而不会损害光子通量。
In this work we propose the generation of a hybrid entangled resource (HER) and its further application in a quantum teleportation scheme from an experimentally feasible point of view. The source for HER preparation is based on the four wave mixing process in a photonic crystal fiber, from which one party of its output bipartite state is used to herald a single photon or a single photon added coherent state. From the heralded state and linear optics the HER is created. In the proposed teleportation protocol Bob uses the HER to teleport qubits with different spectral properties. Bob makes a Bell measurement in the single photon basis and characterizes the scheme with its average quantum teleportation fidelity. Fidelities close to one are expected for qubits in a wide spectral range. The work also includes a discussion about the fidelity dependence on the geometrical properties of the medium through which the HER is generated. An important remark is that no spectral filtering is employed in the heralding process, which emphasizes the feasibility of this scheme without compromising photon flux.
