Manipulation and Observation of Spins in a Cavity

这项工作的重点是检测、操纵和使用高质量光学谐振器中捕获的原子冷气体。在这样一个系统中，原子的内部状态——它们的量子自旋——与注入腔内的光发生强烈的相互作用。这种控制良好的相互作用使我们能够探索原子气体自旋状态测量的量子极限，指导原子自旋之间光介导的相互作用，并在恒定测量下检查复杂量子系统的行为。该研究的具体目标是证明由于腔场和自旋系综之间的反馈而预测发生的一系列新的动力现象，并利用磁共振成像（MRI）以最高的空间分辨率研究动力现象。我们的科学发现将阐明复杂的非平衡现象是如何由几个简单量子元素的杂化产生的，并将阐明固态材料中的磁性和输运现象。这项工作还为未来的科学领袖提供了出色的实验室技能和科学培训。

This work focuses on the detection, manipulation, and use of cold gases of atoms trapped within a high-quality optical resonator. In such a system, the internal state of the atoms -- their quantum spin -- interacts strongly with light injected into the cavity. This well controlled interaction allows us to explore the quantum limits of how well the spin state of the atomic gas can be measured, to direct light-mediated interactions between the atomic spins, and to examine the behavior of a complex quantum system under constant measurement. Specific aims of the effort are to demonstrate a new range of dynamical phenomena predicted to occur due to feedback between the cavity field and the spin ensemble, and to employ magnetic resonance imaging (MRI) to study dynamical phenomena with the highest spatial resolution. Our scientific findings will clarify how complex non-equilibrium phenomena result from the hybridization of several simple quantum elements, and will shed light on magnetic and transport phenomena in solid-state materials. The work also provides excellent laboratory skills and scientific training to future scientific leaders.