Photon Emission from a Cavity-Coupled Quantum Dot
腔耦合量子点的光子发射
基本信息
- 批准号:1409556
- 负责人:
- 金额:$ 42万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2014
- 资助国家:美国
- 起止时间:2014-08-01 至 2018-07-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Non-Technical AbstractThe use of lasers is ubiquitous in modern science and technology, with applications ranging from optical interferometers to compact disk players. This project investigates the physics of quantum dots that are coupled to microwave cavities. Quantum dots are nanoscale devices that can be used to trap single electrons. A microwave cavity consists of two 'mirrors' that trap a single photon of light for a relatively long period of time. The research team has shown that it may possible to create a new type of laser by flowing single electrons through a quantum dot that is coupled to a cavity. The research team is performing measurements to determine if single microwave photons can be generated with the device. In addition to training graduate and undergraduate students, the principal investigator will support a comprehensive outreach program. A 'quantum device' website is being constructed and new tutorials will be created to demonstrate basic concepts in classical mechanics.Technical AbstractThe project aims to understand the dynamics of quantum dots that are coupled to a single microwave cavity. Single electron tunneling in this system results in photoemission and the statistics of the resulting light field is being studied. By pumping single electrons through a cavity coupled double quantum dot, the research team is attempting to create a deterministic single photon source that operates in the microwave regime. Photon detection aspects are being studied, by using one double quantum dot as a photon emitter and a second double quantum dot as a photon detector. The experiments are made possible by cutting-edge technological advances in quantum dot devices and quantum limited amplification. In the advanced phase of the program, the research team will couple multiple quantum dots to a single microwave cavity and search for collective effects. For example, do charge transitions in one double quantum dot couple to another quantum dot that is located ~ 1 cm away via the cavity field? Is it possible to observe collective enhancements in photon emission, such as Dicke superradiance? In addition to the technical effort, the research team will develop a 'Quantum Device Wiki' that introduces the basic aspects of quantum devices (single electron charging and Pauli blockade). The Wiki also supports several simulation packages that will be of use to the technical community. The principal investigator is creating short classical mechanics tutorials that will be posted on the internet for open access.
激光的使用在现代科学技术中无处不在,其应用范围从光学干涉仪到光盘播放器。本项目研究耦合到微波腔的量子点的物理学。量子点是可以用来捕获单个电子的纳米级器件。微波谐振腔由两个“镜子”组成,可以在相对较长的时间内捕获单个光子。该研究小组已经表明,通过使单个电子流过与腔体耦合的量子点,有可能创造出一种新型激光器。研究小组正在进行测量,以确定是否可以用该设备产生单个微波光子。除了培训研究生和本科生,主要研究者将支持一个全面的推广计划。一个“量子器件”网站正在建设中,新的教程将被创建,以展示经典力学的基本概念。技术摘要该项目旨在了解量子点耦合到一个单一的微波腔的动力学。在这个系统中的单电子隧穿的结果在光电子发射和所产生的光场的统计正在研究中。通过将单电子泵送通过腔耦合双量子点,研究小组试图创建一个在微波状态下工作的确定性单光子源。通过使用一个双量子点作为光子发射器和第二个双量子点作为光子检测器,正在研究光子检测方面。这些实验是通过量子点设备和量子限制放大的尖端技术进步而实现的。在该计划的高级阶段,研究小组将把多个量子点耦合到一个微波腔中,并寻找集体效应。例如,一个双量子点中的电荷跃迁是否通过腔场耦合到距离约1 cm的另一个量子点?是否有可能观察到光子发射的集体增强,例如迪凯超辐射?除了技术方面的努力,研究小组还将开发一个“量子器件维基”,介绍量子器件的基本方面(单电子充电和泡利封锁)。Wiki还支持一些对技术社区有用的模拟包。首席研究员正在创建简短的经典力学教程,将发布在互联网上供开放访问。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Jason Petta其他文献
Jason Petta的其他文献
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{{ truncateString('Jason Petta', 18)}}的其他基金
CAREER: Coupled Quantum Degrees of Freedom in Semiconductor Nanostructures
职业:半导体纳米结构中的耦合量子自由度
- 批准号:
0846341 - 财政年份:2009
- 资助金额:
$ 42万 - 项目类别:
Continuing Grant
EMT/QIS: GaAs hole spins as qubits: Eliminating hyperfine interaction-induced decoherence
EMT/QIS:GaAs 空穴作为量子位旋转:消除超精细相互作用引起的退相干
- 批准号:
0829872 - 财政年份:2008
- 资助金额:
$ 42万 - 项目类别:
Continuing Grant
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