Quantum Optics in Cavity QD

腔体 QD 中的量子光学

• 批准号: 0969257
• 负责人: Luis Orozco
• 金额: $ 51.27万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-07-01 至 2014-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0969257&HistoricalAwards=false
• 关键词: Quantum; Optics; Cavity; QD

The goal of this work is to investigate cavity QED with two polarization modes. The experiments explore quantum feedback on the ground state quantum beats of the system. Those beats, originating on long-lived ground state quantum coherences, are only present in the autocorrelation of the un-driven mode. The ground state superposition will be manipulated and controlled through conditional measurements and external fields, which shield the coherence and correct quantum errors through probabilistic error correction protocols. Investigations of the atomic polarization under strong driving fields will show the saturation of the atom, despite its multilevel structure, using heterodyne techniques. Broader impacts: The project supports two graduate students in the area of Atomic, Molecular, and Optical Physics. The students will participate in the open houses of the laboratory that are organized by the undergraduate office of the Physics Department many times per year, as well as help with the Summer Girls Progam. The students are expected to attend the weekly Joint Quantum Seminar between NIST and UMD, where more than half of the speakers come from the AMO community and all are interested in questions related to quantum coherence. There will be undergraduates participating in the research effort and two Mexican undergraduates will spend ten weeks in the laboratory. Reports on the progress of the group will be available on the web page of the JQI as well as on the group's web site, with explanations geared to the general public.

这项工作的目的是通过两种极化模式研究腔QED。该实验探索了系统的基态量子beats的量子反馈。这些节拍起源于长寿命基量量子相干，仅存在于非驱动模式的自相关中。将通过条件测量和外部磁场来操纵和控制基态叠加，从而通过概率误差校正协议屏蔽连贯性并纠正量子错误。使用异差技术，在强驱动场下对原子极化的研究将显示原子的饱和度。更广泛的影响：该项目支持原子，分子和光学物理学领域的两名研究生。学生将参加由物理学系本科生每年多次组织的实验室的开放式房屋，并在夏季女子舞会方面提供帮助。预计学生将参加NIST和UMD之间的每周联合量子研讨会，其中一半以上的演讲者来自AMO社区，所有人都对与量子相干性有关的问题感兴趣。将有参加研究工作的大学生，两名墨西哥本科生将在实验室里呆十周。有关小组进度的报告将在JQI的网页以及小组的网站上提供，并提供了向公众提供的解释。