论文标题
通过快速和连贯的电子穿梭的远处自旋纠缠
Distant spin entanglement via fast and coherent electron shuttling
论文作者
论文摘要
为了寻求大规模量子计算，网络量子计算机为可扩展性提供了自然的路径。现在，已经证明了最近在半导体中的电子自旋矩形证明了最近的邻居纠缠，片上的长距离纠缠带来了连接量子核心单元的多功能性。在这里，我们意识到一对纠缠电子旋转的受控和连贯的转移，并在以6微米为单位的距离分离时演示了它们的遥远纠缠。由电子位移引起的相干自旋旋转驱动，观察到高对比度自旋量子干扰物，并且是整个位移过程中纠缠的保留的标志。这项工作为半导体量子电路中的遥量钻头的快速芯片确定性互连打开了途径。
In the quest for large-scale quantum computing, networked quantum computers offer a natural path towards scalability. Now that nearest neighbor entanglement has been demonstrated for electron spin qubits in semiconductors, on-chip long distance entanglement brings versatility to connect quantum core units. Here we realize the controlled and coherent transfer of a pair of entangled electron spins, and demonstrate their remote entanglement when separated by a distance of 6 microns. Driven by coherent spin rotations induced by the electron displacement, high-contrast spin quantum interferences are observed and are a signature of the preservation of the entanglement all along the displacement procedure. This work opens the route towards fast on-chip deterministic interconnection of remote quantum bits in semiconductor quantum circuits.
