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

****技术摘要****混合动力系统结合了两种或多种技术的理想特性，以提高每个组件的性能。该项目旨在开发嵌入硅双量子点内的磷掺杂物形成的混合“分子”。该项目将研究在两个不同子系统的自旋之间传递信息的方法：量子点中的电子自旋和磷供体的电子自旋（或核自旋）。门控量子点的高度可调性提供了通过电子自由度（可以非常快速地操纵和测量）与核自旋（高度相干）相互作用的新方法的可能性。该项目旨在探索供体和量子点之间的新型混合状态，并利用这些状态来弥补原子供体和其他半导体纳米结构之间的长度不匹配。计算机建模将提供实验结果和基础理论之间的联系。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得到训练。该项目还将创建一个新的扩展模块，专注于纳米科学，并将其与目前每年覆盖数千名学生的项目合并。****非技术摘要****混合系统结合了两种或多种技术的理想特性，以提高每个组件的性能。该项目旨在开发混合“分子”，由嵌入人工原子的单个真实原子组成。该项目将使用在单电子晶体管中形成的人造原子，这种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递到真正的原子（以及真正的原子核，它的寿命特别长），然后再传递回来的方法。从实际的角度来看，该项目寻求使用对硅晶体管有效的工具来操纵原子系统的方法。从根本上说，该项目将探索具有非常不同特征长度尺度的真实和人造原子系统之间的相互作用。计算机模拟将用于将实验结果与基础理论联系起来。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得到训练。该项目还将创建一个新的扩展模块，专注于纳米科学，并将其与目前每年覆盖数千名学生的项目合并。

****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.