摘要
We experimentally realize two-dimensional(2D)single-layer ultracold gases of^(87)Rb by dynamically tuning the periodicity of a standing wave,known as accordion lattice.In order to load^(87)Rb Bose-Einstein condensate into single dark fringe node of the blue detuning optical lattice,we reduce the lattice periodicity from 26.7μm to 3.5μm with the help of an acousto-optic deflector(AOD)to compress the three-dimensional BEC adiabatically into a flat and uniform quasi-2D single-layer.We describe the experimental procedure of the atoms loading into the accordion lattice in detail and present the characteristics of the quasi-2D ultracold gases.This setup provides an important platform for studying in-and out-of equilibrium physics,phase transition and 2D topological matter.
基金
Project supported by the Innovation Program for Quantum Science and Technology(Grant No.2021ZD0302003)
the National Key Research and Development Program of China(Grant Nos.2016YFA0301602,2018YFA0307601,and 2021YFA1401700)
the National Natural Science Foundation of China(Grant Nos.12034011,92065108,11974224,12022406,and 12004229)
the Natural Science Basic Research Plan of Shaanxi Province,China(Grant No.2019JQ058)
the Fund for Shanxi“1331 Project”Key Subjects Construction。
