Magnetic resonance studies of spin phenomena in semiconductor quantum dots

半导体量子点自旋现象的磁共振研究

• 批准号: 1797936
• 金额: --
• 依托单位: University of Sheffield
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1797936
• 关键词: Magnetic; resonance; studies; spin; phenomena

This experimental project focuses on electron and nuclear spin physics in nanometer-sized optically active semiconductor quantum dots. Semiconductor quantum dots are a promising hardware for the emerging quantum information technologies: the spin wavefunction of the electron can be used to store and process quantum information. The interaction of the electron spin with the spins of atomic nuclei is a major challenge on this way. The aim of this project is to explore the physics and develop the working principles for a state-of-the-art quantum logic gate where electron spin is isolated from nuclear spin fluctuations using radio-frequency magnetic resonance pulses. Techniques for microwave coherent manipulation of the electron spin wavefunction will be developed in order to pave the way for electric coherent control in scalable optoelectronic circuits for quantum information processing. This project will be a part of a very successful research work conducted by the Inorganic Semiconductor Physics group at the University of Sheffield.

本实验项目主要研究纳米级光活性半导体量子点的电子和核自旋物理。半导体量子点是新兴量子信息技术的一种很有前途的硬件：电子的自旋波函数可以用来存储和处理量子信息。电子自旋与原子核自旋的相互作用是这方面的主要挑战。该项目的目的是探索物理和发展的工作原理，最先进的量子逻辑门，其中电子自旋与核自旋波动使用射频磁共振脉冲隔离。微波相干操纵电子自旋波函数的技术将得到发展，从而为量子信息处理的可扩展光电子电路中的电相干控制铺平道路。该项目将成为谢菲尔德大学无机半导体物理小组进行的一项非常成功的研究工作的一部分。

项目成果

Cross calibration of deformation potentials and gradient-elastic tensors of GaAs using photoluminescence and nuclear magnetic resonance spectroscopy in GaAs/AlGaAs quantum dot structures

• DOI: 10.1103/physrevb.97.235311
• 发表时间: 2018-06-19
• 期刊: PHYSICAL REVIEW B
• 影响因子: 3.7
• 作者: Chekhovich, E. A.;Griffiths, I. M.;Rastelli, A.
• 通讯作者: Rastelli, A.