CAREER: Continuous Measurements of Quantum Dynamical Systems

职业：量子动力系统的连续测量

• 批准号: 0547926
• 负责人: Daniel Steck
• 金额: $ 57.06万
• 依托单位: University of Oregon Eugene
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-03-01 至 2012-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0547926&HistoricalAwards=false
• 关键词: CAREER; Continuous; Measurements; Quantum; Dynamical

This CAREER project focuses on achieving a better understanding of continuous quantum measurements of the motion of ultracold atoms. The research will characterize continuous quantum measurements in detail through experiments on the free-space dynamics of atoms interacting with classical laser fields. This research direction begins with a relatively simple experiment to study measurement-induced interference in the resonance fluorescence of two atoms. The emergence of an interference pattern in the scattered light is the signature of a quantum measurement of relative position, a dynamical collapse process that counters the dispersive tendencies of the atomic motion. The next goal is to demonstrate a time- and space-resolved measurement of a single atom by imaging light scattered from a probe laser - a realization of a continuous Heisenberg microscope. This will allow a thorough characterization of a continuous measurement process, including studies of the emergence of quantum correlations and classical-like trajectory behavior in the measurement record. A long-term goal of this research plan is to study the feedback control of a single quantum system. The educational component involves outreach to high school teachers and the development of a mad scientist course aimed at non-science majors.

这个职业项目的重点是实现更好地理解超冷原子运动的连续量子测量。这项研究将通过原子与经典激光场相互作用的自由空间动力学实验，详细描述连续量子测量的特征。这个研究方向从一个相对简单的实验开始，研究两个原子共振荧光中的测量诱导干涉。散射光中干涉图样的出现是相对位置的量子测量的标志，这是一个动态的坍缩过程，与原子运动的色散趋势相反。下一个目标是通过对探测激光器散射的光进行成像来演示单个原子的时间和空间分辨测量--实现连续海森堡显微镜。这将允许对连续测量过程进行彻底的表征，包括研究测量记录中量子相关性和经典轨迹行为的出现。该研究计划的一个长期目标是研究单个量子系统的反馈控制。教育部分涉及到对高中教师的宣传和针对非科学专业的疯狂科学家课程的开发。