Fluorine spin qubits in isotopically enriched II-VI semiconductors (Z02)

同位素富集 II-VI 半导体中的氟自旋量子位 (Z02)

• 批准号: 269990702
• 金额: --
• 依托单位: PGI-9: Halbleiter-Nanoelektronik
• 依托单位国家: 德国
• 项目类别: CRC/Transregios
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2017-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/269990702?language=en
• 关键词: Fluorine; spin; qubits; isotopically; enriched

The goal of this project is the elaboration of non-zero nuclear-spin depleted (Zn,Mg)Se/ZnSe quantum structures fabricated by molecular beam epitaxy. With such structures an optically addressable spin system shall be realized, which may serve as a solid-state quantum memory with long coherence time. The latter is limited due to a non-zero nuclear-spin background of the host crystal. Nuclear-spin purified ZnSe enables a strong increase of the spin coherence, which makes this material particularly suited to unveil new effects on the spin dynamics with time scales beyond the limiting nuclear spin fluctuations.

本项目的目标是用分子束外延技术制备非零核自旋耗尽(Zn，Mg)Se/ZnSe量子结构。利用这种结构，将实现一个光学可寻址的自旋系统，它可以作为一个具有长相干时间的固态量子存储器。后者由于主体晶体的非零核自旋背景而受到限制。核自旋提纯的ZnSe使自旋相干性大大提高，这使得这种材料特别适合于揭示自旋动力学中的新效应，其时间尺度超过了限制核自旋涨落的范围。