arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1808.00345cond-mat.quant-gas
收藏

光晶格中玻色-爱因斯坦凝聚体的共振激发

Resonant excitations of a Bose Einstein condensate in an optical lattice

C. Cabrera-Gutiérrez, E. Michon, M. Arnal, V. Brunaud, T. Kawalec, J. Billy, D. Guéry-Odelin

摘要:

实验研究了一个放置在一维光晶格中的玻色-爱因斯坦凝聚体,其相位或振幅在与能带结构的第一能带共振的频率范围内被调制。我们研究了相互作用强度和外部约束对1-和2-声子跃迁的综合影响。我们确定线免疫或敏感的原子-原子相互作用。实验结果与数值模拟结果吻合较好。使用能带映射技术,我们得到了一个直接访问的人口已经经历了$n$声子跃迁的每个调制频率。

英文摘要:

We investigate experimentally a Bose Einstein condensate placed in a 1D optical lattice whose phase or amplitude is modulated in a frequency range resonant with the first bands of the band structure. We study the combined effect of the strength of interactions and external confinement on the 1 and 2-phonon transitions. We identify lines immune or sensitive to atom-atom interactions. Experimental results are in good agreement with numerical simulations. Using the band mapping technique, we get a direct access to the populations that have undergone $n$-phonon transitions for each modulation frequency.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑