Magnetic resonance studies of spin phenomena in semiconductor quantum dots

本实验项目主要研究纳米级光学活性半导体量子点中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最先进的量子逻辑门的物理原理并开发其工作原理，在这种门中，使用射频磁共振脉冲将电子自旋与核自旋波动隔离。将发展微波相干操纵电子自旋波函数的技术，以便为量子信息处理的可扩展光电子电路的电相干控制铺平道路。这个项目将是谢菲尔德大学无机半导体物理小组进行的非常成功的研究工作的一部分。

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.