RUI: Binary Bose-Einstein Condensates near a Feshbach Resonance

本项目的重点是研究Rb-87中二元双自旋态玻色-爱因斯坦凝聚体中原子相互作用强度变化的影响。将采取两种研究途径。在第一个系列的实验中，费什巴赫共振的物理性质将使用双凝聚系统进行独特的检验。在这些实验中，第二凝聚成分被用作一种工具，允许以一种新颖的方式从两侧突然接近共振。在第二个系列的实验中，费什巴赫共振将被用来创建不同相互作用强度的二元玻色流体系统，特别强调组分分离的物理学。在这组实验中，第二组分作为共振附近凝结物干涉测量研究的相位参考。

This project focuses on the study of the effects of varying the strength of the atomic interactions in a binary, two-spin-state Bose-Einstein Condensate in Rb-87. Two avenues of research will be pursued. In the first series of experiments the physics of a Feshbach resonance will be uniquely examined using the double-condensate system. In these experiments the second condensate component is used as a tool that permits approaching the resonance suddenly from both sides, and in a novel manner. In the second series of experiments the Feshbach resonance will be used to create binary Bose fluid systems of varying interaction strengths, with a particular emphasis on the physics of component separation. In this set of experiments the second component serves as a phase reference for interferometric studies of a condensate in the vicinity of a resonance.