Collaborative Research: Quantum Dynamics and Control with Ultracold Rydberg Atoms

合作研究：超冷里德堡原子的量子动力学和控制

• 批准号: 2011610
• 负责人: Michael Noel
• 金额: $ 34.6万
• 依托单位: Bryn Mawr College
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2011610&HistoricalAwards=false
• 关键词: Collaborative; Research; Quantum; Dynamics; Control

General audience abstract:Long range interactions among atoms provide the foundation for many possible quantum information applications. These include quantum computing, cryptography, and simulation of complex phenomena like superconductivity. In the past few decades, theoretical explorations have revealed surprising new dynamics in these interactions that have only recently been probed by experiment. For example, under certain conditions an interacting system of atoms can be “localized” so that the initial state of the system persists for long times; this has potential for a quantum memory device. This research team will use lasers, electric fields, and magnetic fields to study quantum dynamics and control by probing groups of atoms cooled to a few hundred millionths of a degree above absolute zero. Their project is a collaborative effort between Bryn Mawr and Ursinus, both small, national liberal arts colleges located in close proximity in southeastern Pennsylvania. A diverse group of students, particularly undergraduates, will be employed and trained every year. The students will participate in all facets of the research, including experimental lab work, computational studies on a supercomputer, writing and publishing journal articles, and presenting at conferences. They will therefore be well-prepared for graduate school and careers in STEM.Technical audience abstract:There is considerable interest, from both the condensed matter and atomic physics communities, in using cold atom systems to study the quantum dynamics of many-body thermalization and localization. While there are many theoretical and computational results in the study of thermalization and localization, there are still only a few experimental systems being explored. Ultracold Rydberg gases in a magneto-optical trap will be used to explore quantum control of the Rydberg electron, dipole-dipole interaction dynamics, and many-body thermalization with a combination of experimental and computational efforts. These experiments will attempt to create and control coherence in interacting many-atom systems. An echo-like measurement will be developed, which will illuminate the role that field-tuned and always-resonant dipole-dipole interactions play in many-body thermalization and possible localization. Optimization of these quantum processes will be explored using a genetic algorithm or other machine learning techniques.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

普通受众摘要：原子之间的远距离交互为许多可能的量子信息应用提供了基础。这些包括量子计算，加密以及对超导性等复杂现象的模拟。在过去的几十年中，理论探索揭示了这些相互作用的新动态，这些动态直到最近才通过实验证明。例如，在某些条件下，原子的相互作用系统可以“局部”，以使系统的初始状态持续很长时间。这具有量子存储器设备的潜力。该研究团队将使用激光，电场和磁场来研究量子动力学和控制，通过探测冷却至绝对零以上的数百万个度的原子组。他们的项目是Bryn Mawr和Ursinus之间的合作努力，这些小型国家文科学院都位于宾夕法尼亚州东南部。每年将雇用和培训一群潜水员的学生，特别是本科生。学生将参与研究的所有方面，包括实验实验室工作，超级计算机的计算研究，写作和出版期刊文章以及在会议上介绍。因此，他们将为研究生院和STEM的职业做好准备。技术受众摘要：从冷凝物物质和原子物理群落中，人们对使用冷原子系统来研究多体体热和本地化的量子动力学。尽管在热化和定位研究中有许多理论和计算结果，但仍有少数实验系统正在探索。磁光陷阱中的Ultracold Rydberg气体将用于探索对Rydberg电子，偶极 - 偶极相互作用动力学的量子控制，并结合实验和计算工作的多体热化。这些实验将尝试在交互的多原子系统中创建和控制连贯性。将开发出回声样的测量，该测量将阐明在多体热化和可能的定位中，野外调节且始终具有共鸣的偶极双极相互作用的作用。这些量子过程的优化将使用遗传算法或其他机器学习技术进行探索。该奖项反映了NSF的法定任务，并使用基金会的知识分子优点和更广泛的影响审查标准，通过评估诚实地认为是诚实的支持。