Theoretical study on light and matter wave : Micro-macro link in open quantum systems

这项理论工作探索了利用光场进行物质波量子控制的新可能性，为理解和描述耦合光-物质波系统的基本方面铺平了道路。本研究的主要成果总结如下：1.研究内容：复合玻色子的光力学研究进展特别是法布里-珀罗腔中的量子简并费米气体，2。2 .提出利用光学角动量产生非经典物质波态的新技术；通过几个理论分析来理解精确可解系统中的亚稳态量子相变。

This theoretical work explored new possibilities of matter-wave quantum control with the use of light field, and paved the way for the understanding and description of fundamental aspect of coupled light-matter wave systems. The main results of this research are summarized as follows : 1. development of optomechanics of composite bosons ; in particular, quantum-degenerate fermi gas trapped in a Fabry-Perot cavity, 2. proposal of new techniques to generate nonclassical matter-wave states with the use of the optical angular momentum, and 3. understanding a metastable quantum phase transition in an exactly solvable system via several theoretical analyses.