论文标题
使用全局字段的纳米电子设备中的单电子旋转共振
Single-electron spin resonance in a nanoelectronic device using a global field
论文作者
论文摘要
基于自旋的硅量子电子电路为量子计算提供了可扩展的平台，将半导体设备的制造性与硅旋转提供的长相干时间结合在一起。从当前的几个Qubit设备到硅量子处理器，其超过一百万QUAT（耐故障操作）提出了几个独特的挑战，最苛刻的挑战之一是能够为大型Qubit控制提供微波信号。在这里，我们通过使用三维介电谐振器在量子纳米电路上广播全局微波信号来证明该问题的潜在解决方案。至关重要的是，该技术仅利用单个微波源，并且能够同时向数百万量子位传递控制信号。我们表明，全局场可用于执行限制在硅双重量子点设备中的单电子的自旋共振，从而确立了这种方法对可扩展自旋量子控制控制的可行性。
Spin-based silicon quantum electronic circuits offer a scalable platform for quantum computation, combining the manufacturability of semiconductor devices with the long coherence times afforded by spins in silicon. Advancing from current few-qubit devices to silicon quantum processors with upwards of a million qubits, as required for fault-tolerant operation, presents several unique challenges, one of the most demanding being the ability to deliver microwave signals for large-scale qubit control. Here we demonstrate a potential solution to this problem by using a three-dimensional dielectric resonator to broadcast a global microwave signal across a quantum nanoelectronic circuit. Critically, this technique utilizes only a single microwave source and is capable of delivering control signals to millions of qubits simultaneously. We show that the global field can be used to perform spin resonance of single electrons confined in a silicon double quantum dot device, establishing the feasibility of this approach for scalable spin qubit control.
