A Quantum Hybrid System for Linking Rydberg Atom Quantum Gates

连接里德伯原子量子门的量子混合系统

• 批准号: 1104424
• 负责人: James Shaffer
• 金额: $ 46.5万
• 依托单位: University of Oklahoma Norman Campus
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-01 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1104424&HistoricalAwards=false
• 关键词: Quantum; Hybrid; System; Linking; Rydberg

There has been significant progress constructing neutral atom quantum gates based on Rydberg atoms over the last year. These quantum gates are good candidates for building a scalable quantum computer because they possess the distinct advantage that the atomic ground states, where quantum information is stored, are weakly interacting while the Rydberg states, where gate operations are performed, are strongly interacting. These features make Rydberg atom quantum gates relatively immune to environmental noise and therefore show great promise as scalable systems for quantum devices. Theoretically, Rydberg atom ensembles can also be made to behave collectively as 'superatoms' using Rydberg atom dipole blockade to make Rydberg atom neutral quantum gates even more robust. One important element necessary to make Rydberg atom quantum gates useful and scalable is a way to transfer information between gates via the electromagnetic field. Our research focuses on developing this piece of the Rydberg atom quantum computation toolbox. We are investigating a new type of quantum hybrid system that can be used to transfer quantum information between 2 distinct clouds of Rydberg atoms. Rydberg atoms can interact strongly with surface polaritons and the surface polaritons can be used to transfer information between 2 distinct points in space. Surface polaritons are mixtures of crystal vibrations and light that can propagate along the surface of a dielectric solid, such as quartz. The project will support 2 graduate students who will complete the work described. The research program will also enable undergraduate students to participate through the senior thesis and NSF-REU programs at OU. Our research group has been successful with undergraduate research participation as demonstrated by the completion of 31 different senior theses and NSF-REU projects over the last 10 years. To help recruit new students to and teach the students working on the project, the PI will include topics relevant to this research in the summer course in advanced research topics that he has taught in the past, interrupted only by a sabbatical, to faculty, graduate students and summer undergraduate research students, most recently at OU-Tulsa. Our work will also open, to our knowledge, an almost unexplored atom field interaction, that which occurs between Rydberg atoms and surface phonon polaritons. This area of research can contribute to a better understanding of surfaces and to the development of polaritronic devices. This is important because the frequencies spanned by polaritons are at the interface between photonic and electronic devices. This work will also help to develop readout schemes for other atomic based devices that can be integrated into atom chips and interfaced to conventional electronics.

去年，基于Rydberg原子建造中性原子量子门的进展取得了重大进展。这些量子门是构建可伸缩量子计算机的良好候选者，因为它们具有独特的优势，即存储量子信息的原子基础状态在执行门操作的Rydberg状态下是弱相互作用的，在执行栅极操作的情况下是强烈交互的。这些功能使Rydberg Atom量子门对环境噪声相对免疫，因此作为量子设备的可扩展系统表现出了很大的希望。从理论上讲，也可以使用Rydberg Atom Dipole Blockade将Rydberg Atom集团集体地作为“超级原子”，以使Rydberg Atom中性量子门更加强大。使Rydberg Atom量子门有用且可扩展所需的一个重要元素是通过电磁场之间传输信息之间信息的一种方法。我们的研究重点是开发这部分Rydberg Atom量子计算工具箱。我们正在研究一种新型的量子混合系统，该系统可用于在2种不同的Rydberg原子之间传输量子信息。 Rydberg原子可以与表面偏振子进行强烈相互作用，并且表面极性子可用于在空间中2个不同的点之间传递信息。表面极性子是晶体振动和光的混合物，可以沿介电固体的表面（例如石英）传播。 该项目将支持2名将完成所描述工作的研究生。该研究计划还将使本科生能够通过OU的高级论文和NSF-REU计划参加。在过去的10年中，我们的研究小组已经成功地获得了本科研究的参与。为了帮助招募新学生来教育该项目的学生，PI将在夏季课程中包括与这项研究相关的高级研究主题，他过去曾教授过，只有休假，教职员工，研究生和夏季的本科生研究，最近在Ou-Tulsa中。据我们所知，我们的工作也将开放几乎未开发的原子场相互作用，而原子场相互作用是Rydberg Atoms和Surface Polaron Polaritons之间发生的。该研究领域可以更好地了解表面和极化设备的发展。这很重要，因为偏振子跨越的频率位于光子设备和电子设备之间的界面。这项工作还将有助于开发其他基于原子的设备的读数方案，这些设备可以集成到原子芯片中并连接到常规电子产品。