Coherent control of electron spin qubits in silicon using a global field
Coherent control of electron spin qubits in silicon using a global field
复制标题
使用全局场对硅中电子自旋量子位进行相干控制
DOI：
10.1038/s41534-022-00645-w
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发表时间：
2021
影响因子：
7.6
通讯作者：
J. Pla
中科院分区：
文献类型：
--
作者：
E. Vahapoglu;J. Slack;R. Leon;W. H. Lim;F. Hudson;T. Day;J. D. Cifuentes;T. Tanttu;C. Yang;A. Saraiva;N. Abrosimov;H. Pohl;M. Thewalt;A. Laucht;A. Dzurak;J. Pla
硅自旋量子位有望利用过去半个世纪硅纳米电子器件制造的非凡进展来提供大规模量子处理器。尽管使用硅技术具有可扩展性优势，但实现具有数百万个量子比特的量子计算机来运行一些最苛刻的量子算法带来了几个突出的挑战，包括如何同时控制多个量子比特。最近，紧凑的三维微波介电谐振器被提出，作为一种仅使用单个微波源在整个量子芯片上传递自旋量子比特控制磁场的方法。虽然证明了在全局微波场中单个电子的自旋共振，但自旋是非相干控制的。本文报道了单电子自旋量子比特在平面SiMOS量子点器件中利用片外磁场产生的相干拉比振荡。介电谐振器驱动相干量子比特控制的观察为实现自旋量子计算机的大规模控制提供了可靠的途径。
Silicon spin qubits promise to leverage the extraordinary progress in silicon nanoelectronic device fabrication over the past half century to deliver large-scale quantum processors. Despite the scalability advantage of using silicon technology, realising a quantum computer with the millions of qubits required to run some of the most demanding quantum algorithms poses several outstanding challenges, including how to control many qubits simultaneously. Recently, compact 3D microwave dielectric resonators were proposed as a way to deliver the magnetic fields for spin qubit control across an entire quantum chip using only a single microwave source. Although spin resonance of individual electrons in the globally applied microwave field was demonstrated, the spins were controlled incoherently. Here we report coherent Rabi oscillations of single electron spin qubits in a planar SiMOS quantum dot device using a global magnetic field generated off-chip. The observation of coherent qubit control driven by a dielectric resonator establishes a credible pathway to achieving large-scale control in a spin-based quantum computer.
影响因子：
6.4
作者：
Preskill, John
通讯作者：
Preskill, John