论文标题
通过电子总线纠缠在遥远的量子点中的核自旋
Entangling nuclear spins in distant quantum dots via an electron bus
论文作者
论文摘要
我们提出了一个方案，用于确定性生成两个远量子点的核自旋之间的纠缠。该协议依赖于每个量子点中有明确极化的电子的注入，以及电子从一个量子点向另一个量子点的相干传递。计算小型系统的确切动力学，并使用有效的主方程和近似于较大系统的非线性运动方程式，我们能够确认我们的协议确实会为同质和不均匀系统产生纠缠。最后，我们分析了当前几个实验平台中协议的可行性。
We propose a protocol for the deterministic generation of entanglement between two ensembles of nuclear spins surrounding two distant quantum dots. The protocol relies on the injection of electrons with definite polarization in each quantum dot and the coherent transfer of electrons from one quantum dot to the other. Computing the exact dynamics for small systems, and using an effective master equation and approximate non-linear equations of motion for larger systems, we are able to confirm that our protocol indeed produces entanglement for both homogeneous and inhomogeneous systems. Last, we analyze the feasibility of our protocol in several current experimental platforms.
