Quantum Transport and Noise in Carbon Nanotubes and Mesoscopic Nanosystems

本研究主要探讨单壁奈米碳管的杂讯与高频动态特性。 纳米管中电子态的一维性质使得相关性显著，这可能导致新的Luttinger液态的形成。 利用碳纳米管作为研究电子相互作用的实验室，本研究将研究Luttinger液态的量子散粒噪声，以及微波频率下的电子波动动力学。 在该系统中要研究的噪声是非常独特的，在微波频率下的测量可以访问的基本行为，而没有复杂的1/f噪声方面存在于较低的频率。 我们的目标是了解一维电子的新状态。 该项目涉及与康奈尔大学的研究人员合作，并将为博士后研究人员，研究生和本科生提供制造和测量设施方面的优秀培训。近年来，材料科学家对新型一维系统的开发导致了具有不寻常特性的电导体。 碳纳米管是这些系统的原型，根据其几何形状表现出金属或半导体行为。 为了充分了解碳纳米管电学性质的复杂和新的方面，将使用耶鲁大学最近开发的高灵敏度微波测量技术。 这些测量将为如何将先进的纳米科学工具库应用于纳米级系统和设备提供一个模型研究。 该项目涉及与康奈尔大学的合作，并将在前沿纳米科学和技术方面培养博士后，研究生和本科生水平的学生，从而为他们在工业，工业或政府的职业生涯做好准备。

The proposed research investigates the noise and high frequency dynamics of single-wall carbon nanotubes. The one-dimensional nature of the electron states in nanotubes makes correlations significant, which can lead to the formation of the novel Luttinger liquid state. Using carbon nanotubes as a laboratory for studying the electron interactions, this research will investigate the quantum shot noise of the Luttinger liquid state, and the electron wave dynamics at microwave frequencies. The noise to be studied in this system is quite distinctive, and measurements at microwave frequencies can access the basic behavior without the complicating aspect of 1/f noise present at lower frequencies. The goal is to understand the novel state of one-dimensional electrons. This project involves collaboration with researchers at Cornell University and will provide excellent training for postdoctoral researchers, graduate and undergraduate students in fabrication and measurement facilities available at both these leading institutions. In recent years, the development of novel one-dimensional systems by material scientists has led to electrical conductors with unusual properties. The carbon nanotube is the prototype of these systems, exhibiting either metallic or semiconducting behavior depending on their geometry. To fully understand the complex and new aspects of the electrical properties of carbon nanotubes, highly sensitive microwave measurement techniques, developed recently at Yale University, will be used. These measurements will provide a model study of how to apply the advanced arsenal of tools of nanoscience to nanoscale systems and devices. The project involves collaboration with Cornell University and will train students at postdoctoral, graduate, and undergraduate levels in frontier nanoscience and technology, thus preparing them for careers in academe, industry, or government.