人工合成规范场下超冷简并气体的多体理论

项目名称： 人工合成规范场下超冷简并气体的多体理论

项目编号： No.11204060

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 物理学I

项目作者： 徐晓强

作者单位： 杭州师范大学

项目金额： 25万元

中文摘要： 得益于实验上的进展，目前关于人工合成规范场下超冷原子气（玻色-爱因斯坦凝聚体，简并费米气等）的理论讨论变得相当活跃。我们的前期工作讨论了两分量凝聚体在旋转与Rashba自旋轨道耦合共同作用下的基态相图，在本项目中我们拟继续推进这方面的研究，具体包括：（1）建立体系的流体力学理论，讨论其集体激发谱等动力学行为；（2）分析非阿贝尔规范场可能引起的新奇强关联态；（3）自旋轨道耦合与Feshbach共振（包括原子分子转化过程）的相互影响等。我们期待这些理论研究可以深化对物质场与规范场相互作用的理解。

中文关键词： 超冷原子；光腔；双稳现象；费许巴赫共振；

英文摘要： Due to the experimental developments, the theoretical study on ultracold gases (Bose-Einstein condensates, degenerate Fermi gas etc) under synthetic gauge fields becomes very active and popular recently. Our previous work discussed the possible ground states of a two-component condensate in the presence of both rotation and Rashba spin-orbit coupling, and in the present project we plan to move on the research in the same direction, including the researches of (1) the hydrodynamic theory of the system, and its dynamical behaviors including elementary excitations; (2) the possible novel strongly-correlated states induced by non-Abelian gauge fields; (3) the interplay between spin-orbit coupling and Feshbach resonance (including the conversion process between atoms and molecules), and so on. We expect that our theoretical research could deepen the understanding of interactions between matter fields and gauge fields.

英文关键词： ultracold atoms；optical cavity；bistability；Feshbach resonance；