European Laboratory for Nonlinear Spectroscopy and Dipartimento di Fisica, Università di Firenze, via Nello Carrara 1, I-50019 Sesto Fiorentino, Italy.
Phys Rev Lett. 2010 Apr 16;104(15):153202. doi: 10.1103/PhysRevLett.104.153202. Epub 2010 Apr 14.
We experimentally investigate the mix-dimensional scattering occurring when the collisional partners live in different dimensions. We employ a binary mixture of ultracold atoms and exploit a species-selective 1D optical lattice to confine only one atomic species in 2D. By applying an external magnetic field in proximity of a Feshbach resonance, we adjust the free-space scattering length to observe a series of resonances in mixed dimensions. By monitoring 3-body inelastic losses, we measure the magnetic field values corresponding to the mix-dimensional scattering resonances and find a good agreement with the theoretical predictions based on simple energy considerations.
我们实验研究了碰撞伙伴处于不同维度时发生的混合维度散射。我们使用超冷原子的二元混合物，并利用物种选择性的一维光晶格将仅一种原子物种限制在二维中。通过在费希巴赫共振附近施加外磁场，我们调整自由空间散射长度以观察混合维度中的一系列共振。通过监测三体非弹性损耗，我们测量对应于混合维度散射共振的磁场值，并发现与基于简单能量考虑的理论预测非常吻合。
