论文标题
使用Fisher信息的双向传送
Bidirectional Teleportation using Fisher Information
论文作者
论文摘要
在这项贡献中,我们通过Bloch向量以及当地的操作来重新重新重新制定了[7]中建议的双向传送方案,该协议是通过使用Pauli运营商来表示的。引入了传送状态和Fisher信息的分析和数值计算。结果表明,这两个量取决于传送量表及其触发器的初始状态设置。当量子及其触发器朝着相同的方向极化时,双向传送状态的保真度和渔民信息将最大化。如果两个初始量子位具有不同的极化或非零相位,则可以预测最小值。保真度和量子渔民信息的最大值是相同的,但它们以不同的极化角度进行预测。我们表明,多参数形式比单个参数形式要好得多,它满足了经典,纠缠系统和不确定性原理的界限。
In this contribution, we reformulated the bidirectional teleportation protocol suggested in [7], by means of Bloch vectors as well as the local operations are represented by using Pauli operators. Analytical and numerical calculations for the teleported state and Fisher information are introduced. It is shown that both quantities depend on the initial state settings of the teleported qubits and their triggers. The Fidelities and the Fisher information of the bidirectionally teleported states are maximized when the qubit and its trigger are polarized in the same direction. The minimum values are predicted if both initial qubits have different polarization or non-zero phase. The maximum values of the Fidelity and the quantum Fisher information are the same, but they are predicted at different polarization angles. We display that the multi-parameter form is much better than the single parameter form, where it satisfies the bounds of classical, entangled systems and the uncertainty principle.