论文标题
通过利用螺旋旋转链共享纠缠，量子传送
Quantum teleportation by utilizing helical spin chains for sharing entanglement
论文作者
论文摘要
我们使用螺旋多旋转链的自然动力学在两个方之间开发了一种新的协议，用于在两个方之间共享纠缠（一EBIT）。我们介绍了电场的新型踢球方案，以增强我们的协议中的传送保真度，该方案在适当选择参数的情况下起作用。我们还研究了在纠缠共享渠道中导致反应的常见旋转环境的效果。我们将结果与XXZ和XX模型的结果进行了比较，但具有类似的纠缠共享协议，发现带有踢球方案的螺旋多性链条提供了更好的单线分数。我们表明，即使在存在杂质和/或腐蚀性的情况下，与优化参数结合的踢脚方案也会增强传送的保真度。在杂质情况下显示的踢球方案的优点是重要的结果，可以在可实现的螺旋多效性自旋链中有用。
We develop a new protocol for sharing entanglement (one ebit) between two parties using the natural dynamics of helical multiferroic spin chains. We introduce a novel kicking scheme of the electric field for enhancing the teleportation fidelity in our protocol that works in the presence of an appropriate choice of parameters. We also investigate the effect of a common spin environment causing decoherence in the entanglement sharing channel. We compare the results to that of XXZ and XX models subject to a similar entanglement sharing protocol and find that the helical multiferroic chain with the kicking scheme provides a better singlet fraction. We show that the kicking scheme in conjugation with the optimized parameters enhances the fidelity of teleportation even in the presence of impurities and/or decoherence. The advantage of the kicking scheme shown in the impurity cases is an important result to be useful in a realizable setup of helical multiferroic spin chain.
