存在相互作用时的Talbot效应
The Talbot effect in the presence of interactions
摘要：
我们从实验和理论两方面研究了Talbot干涉仪中的相互作用对周期势场中玻色子原子的影响。虽然相互作用降低了对比度的复苏，我们发现，在广泛的相互作用的塔尔博特信号仍然是成比例的相位相干的物质波场。我们的研究结果证实，Talbot干涉术可以是一个有用的工具来研究有限范围的相位相关的光晶格，即使在存在相互作用。Talbot信号的相对鲁棒性由三维Talbot效应的第一次演示支持。
英文摘要：
We study both experimentally and theoretically, considering bosonic atoms in a periodic potential, the influence of interactions in a Talbot interferometer. While interactions decrease the contrast of the revivals, we find that over a wide range of interactions the Talbot signal is still proportional to the phase coherence of the matter wave field. Our results confirm that Talbot interferometry can be a useful tool to study finite range phase correlations in an optical lattice even in the presence of interactions. The relative robustness of the Talbot signal is supported by the first demonstration of the three-dimensional Talbot effect.
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