论文标题
在驱动的原子腔系统的黑暗状态下形成冷凝水
Condensate formation in a dark state of a driven atom-cavity system
论文作者
论文摘要
我们证明了在深色状态下形成的凝结物，在超低量子气体中，耦合到高型腔，并通过摇动的光学晶格泵送。我们在实验上和理论上表明，黑暗状态中的原子对腔与腔的耦合表现出很大的抑制。在理论方面，通过解决最小三级模型和完整原子腔体系的动力学来支持这一点。相对于泵晶格的电势最小值，冷凝水波函数的对称性是反对称的，并沿空腔方向显示交错的符号。这种对称性将黑暗状态与腔内脱离，并在泵强度关闭时保留。
We demonstrate condensate formation in a dark state in an ultracold quantum gas coupled to a high-finesse cavity and pumped by a shaken optical lattice. We show experimentally and theoretically that the atoms in the dark state display a strong suppression of the coupling to the cavity. On the theory side, this is supported by solving the dynamics of a minimal three-level model and of the full atom-cavity system. The symmetry of the condensate wave function is anti-symmetric with respect to the potential minima of the pump lattice, and displays a staggered sign along the cavity direction. This symmetry decouples the dark state from the cavity, and is preserved when the pump intensity is switched off.
