Collaborative ITR: Optical Control in Semiconductors for Spintronics and Quantum Information Processing

这项信息技术研究(ITR)媒介计划将开发超快光学方法，用于控制半导体的电子、磁性、振动和激子特性，以实现快速信息处理。成功地操纵固体中的量子态和过程将是实现自旋电子学和量子信息科学新兴技术的必要突破。与电控制相比，光控制具有在飞秒时间尺度上进行量子控制的优点，这将在以下特定背景下进行探索：(1)光学控制磁性III-V半导体中的铁磁性；(2)通过动态Franz-Keldysh效应来光学控制能带结构；(3)光学控制GaN/InGaN应变超晶格中的电场；以及(4)光学控制耦合量子阱中的激子。拟议的研究工作将培养未来在纳米科学和量子信息科学等高科技领域就业的学生研究人员，并培养在光谱学、光学、光子学、固态理论、多体理论和量子信息理论方面具有深厚背景的科学家和工程师。莱斯大学、佛罗里达大学和加州大学圣迭戈分校的应用物理课程将开设纳米技术和量子信息科学的新课程。这个信息技术研究(ITR)中等专业的重点是量子电子动力学控制的基础研究。它将为基于自旋的电子学和量子信息处理等新兴领域的应用开发“设计型”电子工艺。研究自然过程的被动范式被在量子水平上设计电子和晶体运动控制的主动范式所取代。先进的激光被用来控制在万亿分之一秒到万亿分之一秒之间的时间范围内的运动。纳米结构的分子束制造被用来将电子限制在约十亿分之一米的空间维度。这种介于现存最小宏观器件和基本粒子微观区域之间的时空区域可能有利于量子控制，并将被探索利用电子自旋作为信息处理的额外维度，并随意产生理想的磁、电和输运性质。该计划在提供纳米科学和量子光学方面的跨学科教育和研究经验方面做出了强有力的努力。它为学生在日益以量子为导向的高科技世界中的未来就业做好准备

This Information Technology Research (ITR) medium program will develop ultrafast optical methods for controlling electronic, magnetic, vibrational, and excitonic properties of semiconductors for fast information processing. Successful manipulation of quantum states and processes in solids will be a necessary breakthrough for implementing the emerging technologies of spintronics and quantum information science. Optical control, as opposed to electrical control, has the advantage of performing quantum control on femtosecond time scales, which will be explored in the following specific contexts: (1) Optical control of ferromagnetism in magnetic III-V semiconductors, (2) optical control of band structure via the dynamic Franz-Keldysh effect, (3) optical control of electric fields in GaN/InGaN strain superlattices, and (4) optical control of excitons in coupled quantum wells. The proposed research work will train student researchers for future employment in high technology fields such as nanoscience and quantum information science and to produce scientists and engineers with a strong background in spectroscopy, optics, photonics, solid state theory, many-body theory, and quantum information theory. New courses on nanotechnology and quantum information science will be developed in the Applied Physics curricula at Rice University, the University of Florida, and the University of California at San Diego.This Information Technology Research (ITR) medium program is focused on fundamental studies of control of quantum electron dynamics. It will develop 'designer' electronic processes for applications in the emerging fields of spin-based electronics and quantum information processing. The passive paradigm of studying natural processes is replaced by the active one of designing controls of electron and crystal motion at the quantum level. Advanced lasers are used to control motion at the time scale between a trillionth and a quadrillionth of a second. Molecular beam fabrication of nanostructures is used to confine the electrons to a spatial dimension around a billionth of a meter. Such a space-time regime between that of the smallest macroscopic device extant and the microscopic regime of the elementary particles may be advantageous for quantum control and will be explored to utilize the electron spin as an extra dimension for information processing and to produce desirable magnetic, electrical and transport properties at will. The program contains a strong effort in providing interdisciplinary education and research experience in nanoscience and quantum optics. It prepares students for future employment in the increasingly quantum-oriented world of high technology