Collinear four-wave mixing of two-component matter waves.
Collinear four-wave mixing of two-component matter waves.
复制标题
二分量物质波的共线四波混合。
DOI：
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发表时间：
2009
影响因子：
8.6
通讯作者：
D. Schneble
中科院分区：
文献类型：
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作者：
D. Pertot;B. Gadway;D. Schneble
我们在共线几何中演示了双组分物质波的原子四波混频。从单粒子玻色-爱因斯坦凝聚体出发，通过微波态转移和能级选择性Kapitza-Dirac衍射制备了种子模和泵浦模。然后，四波混频填充了最初空的输出模式。基于Gross-Pitaevskii方程耦合模展开式的模拟与实验数据符合得很好。结果表明，四波混频可以在光学晶格中玻色混合的研究中发挥重要作用。此外，我们的系统应该在量子原子光学的背景下引起人们的兴趣。
We demonstrate atomic four-wave mixing of two-component matter waves in a collinear geometry. Starting from a single-species Bose-Einstein condensate, seed and pump modes are prepared through microwave state transfer and state-selective Kapitza-Dirac diffraction. Four-wave mixing then populates the initially empty output modes. Simulations based on a coupled-mode expansion of the Gross-Pitaevskii equation are in very good agreement with the experimental data. We show that four-wave mixing can play an important role in studies of bosonic mixtures in optical lattices. Moreover, our system should be of interest in the context of quantum atom optics.