FRG: Studies of H-Minus-Like Donors in Quantum Dots

FRG：量子点中 H-类供体的研究

• 批准号: 1206915
• 负责人: Mark Eriksson
• 金额: $ 60万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-08-01 至 2017-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1206915&HistoricalAwards=false
• 关键词: FRG; Studies; Minus; Like; Donors

****Technical Abstract****Hybrid systems combine the desirable features of two or more technologies in a way that improves the performance of each component. This project seeks to develop hybrid "molecules" formed of phosphorus dopants embedded inside silicon double quantum dots. The project will study methods for transferring information between the spins in two distinct subsystems: the electron spin in a quantum dot and the electron spin (or nuclear spin) of a phosphorous donor. The high degree of tunability of gated quantum dots offers the possibility of new ways to interact with nuclear spins (which are highly coherent) via electronic degrees of freedom (which can be manipulated and measured very rapidly). This project seeks to probe new types of hybrid states between a donor and a quantum dot, and to use those states to bridge the length scale mismatch between atomic donors and other semiconductor nanostructures. Computer modeling will provide a link between the experimental results and the underlying theory. Through this research, graduate students will be trained in areas including nanofabrication, electronic measurement, and theory. The project will also create a new outreach module, focused on nanoscience, and merge it with a program that currently reaches thousands of students each year.****Non-Technical Abstract****Hybrid systems combine the desirable features of two or more technologies in a way that improves the performance of each component. This project seeks to develop hybrid "molecules" formed of individual real atoms embedded inside artificial atoms. The project will use artificial atoms formed in single-electron transistors that are constructed from two common semiconductor materials: silicon and silicon-germanium. This project will study methods for transferring information from the artificial atoms to the real atoms (and to the real atomic nucleus, where it is especially long-lived), and back again. From a practical perspective, the project seeks ways to manipulate atomic systems using tools that work well for silicon transistors. Fundamentally, the project will probe the interactions between real and artificial atoms-systems that have very different characteristic length scales. Computer simulations will be used to relate experimental results to the underlying theory. Through this research, graduate students will be trained in areas including nanofabrication, electronic measurement, and theoretical simulation. The project will also create a new outreach module, focused on nanoscience, and merge it with a program that currently reaches thousands of students each year.

*技术摘要*混合系统以一种提高每个组件性能的方式结合了两种或两种以上技术的理想功能。该项目旨在开发嵌入在硅双量子点中的磷掺杂形成的混合“分子”。该项目将研究在两个不同子系统的自旋之间传输信息的方法：量子点中的电子自旋和磷施主的电子自旋(或核自旋)。门控量子点的高度可调谐性提供了通过电子自由度(可以非常迅速地操纵和测量)与核自旋(高度相干)相互作用的新方法。该项目旨在探索施主和量子点之间的新型杂化态，并利用这些状态来弥合原子施主和其他半导体纳米结构之间的长度尺度失配。计算机模拟将提供实验结果和基本理论之间的联系。通过这项研究，研究生将在纳米制造、电子测量和理论等领域进行培训。该项目还将创建一个新的推广模块，重点是纳米科学，并将其与目前每年惠及数千名学生的项目合并。*非技术摘要*混合系统以一种提高每个组件性能的方式结合了两种或两种以上技术的理想特征。该项目旨在开发由嵌入人造原子中的单个真实原子形成的混合“分子”。该项目将使用在单电子晶体管中形成的人造原子，这些晶体管由两种常见的半导体材料构成：硅和硅锗。这个项目将研究将信息从人造原子传输到真实原子(以及传输到真正的原子核，在那里它的寿命特别长)，然后再传输回来的方法。从实用的角度来看，该项目寻求使用对硅晶体管起作用的工具来操纵原子系统的方法。从根本上说，该项目将探索真实原子和人造原子之间的相互作用--这些系统具有非常不同的特征长度尺度。计算机模拟将被用来将实验结果与基本理论联系起来。通过这项研究，研究生将在纳米制造、电子测量和理论模拟等领域进行培训。该项目还将创建一个新的外展模块，重点是纳米科学，并将其与目前每年接触到数千名学生的项目合并。