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arXiv 0904.1271cond-mat.mes-hall
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硅中单个施主电子自旋的高灵敏度单次读出和控制结构

Architecture for high-sensitivity single-shot readout and control of the electron spin of individual donors in silicon

A. Morello, C. C. Escott, H. Huebl, L. H. Willems van Beveren, L. C. L. Hollenberg, D. N. Jamieson, A. S. Dzurak, R. G. Clark

摘要:

我们描述了一种方法来控制和检测在单次拍摄的单个施主在硅中的电子自旋状态,大大提高了灵敏度。硅基单电子晶体管(SET)允许在读出阶段期间施主电子的自旋相关隧穿直接进入SET岛。模拟结果表明,电荷转移信号通常是Δq > 0.2 e -,比SiO2表面上的金属SET可实现的大一个数量级。通过增加一条局域电子自旋共振线进行相干自旋控制,得到了一个完整的基于自旋的量子比特结构。这种架构非常适合于演示和研究施主电子自旋的相干特性,但可以扩展并与经典控制电子学集成。

英文摘要:

We describe a method to control and detect in single-shot the electron spin state of an individual donor in silicon with greatly enhanced sensitivity. A silicon-based Single-Electron Transistor (SET) allows for spin-dependent tunneling of the donor electron directly into the SET island during the read-out phase. Simulations show that the charge transfer signals are typically Δq > 0.2 e - over an order of magnitude larger than achievable with metallic SETs on the SiO2 surface. A complete spin-based qubit structure is obtained by adding a local Electron Spin Resonance line for coherent spin control. This architecture is ideally suited to demonstrate and study the coherent properties of donor electron spins, but can be expanded and integrated with classical control electronics in the context of scale-up.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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