Many Body Physics of Cold Atomic Gases

这个建议描述了冷原子和相关系统的多体物理学中的重要问题的理论研究。在以前工作的基础上，该实验室将探索几个热门课题，包括（1）费米气体在Feshbach共振附近的性质;（2）氦表面和嵌入分子氢矩阵中的原子氢的光谱;以及（3）调谐强光学晶格中原子相互作用强度的动力学。这些项目的动机是（i）对冷原子基本物理性质的兴趣，（ii）希望使用冷原子作为模型系统来理解其他许多身体系统，以及（iii）正在进行的实验中发现的难题。冷原子的研究对凝聚态物理和核物理中的许多体问题都有重要的影响。

This proposal describes a theoretical study of important problems in the many bodyphysics of cold atoms and related systems. Building on previous work, the investigatorwill explore several topical subjects, including (1) properties of a Fermi gas near aFeshbach resonance; (2) spectra of atomic hydrogen on Helium surfaces andembedded in a molecular hydrogen matrix; and (3)dynamics of tuning the interactionstrength for atoms trapped in a strong optical lattice. These projects are motivated by (i)interest in fundamental physical properties of cold atoms, (ii) desires to use cold atomsas a model system to understand other many body systems, and (iii) puzzles found inongoing experiments. Studying cold atoms has impact on many body problems incondensed matter and nuclear physics.