论文标题
Rydberg集体激发态在冷原子系统中的尺寸减少
Size-Reduction of Rydberg collective excited states in cold atomic system
论文作者
论文摘要
大量原子的集体效应表现出光和原子之间的相互作用增强。这对量子光学和量子信息充满了兴趣。当拉比振荡期间一组原子的集体激发态变化时，振荡将表现出丰富的动力学。在这里，我们通过实验观察到在冷原子稀释气体中rabi振荡期间Rydberg集体状态的尺寸减少效应。 Rydberg集体状态首先是由Rydberg量子记忆创建的，我们通过测量检索到的光场幅度的时间迹线来观察到振荡频率效应的降低，该振幅表现出chir的特征。这是由同时衰变到整体基态和原子的总体损失引起的。观察到的振荡取决于耦合激光器的有效狂犬频率和引起的振荡，以及因不均匀扩展而导致的脱谐。报道的结果表明，研究大量原子的集体效应的动力学以及根据光原子和rydberg原子之间的相互作用来操纵单光子波包的潜在前景。
The collective effect of large amounts of atoms exhibit an enhanced interaction between light and atoms. This holds great interest in quantum optics, and quantum information. When a collective excited state of a group of atoms during Rabi oscillation is varying, the oscillation exhibits rich dynamics. Here, we experimentally observe a size-reduction effect of the Rydberg collective state during Rabi oscillation in cold atomic dilute gases. The Rydberg collective state was first created by the Rydberg quantum memory, and we observed a decreased oscillation frequency effect by measuring the time traces of the retrieved light field amplitude, which exhibited chirped characteristics. This is caused by the simultaneous decay to the overall ground state and the overall loss of atoms. The observed oscillations are dependent on the effective Rabi frequency and detuning of the coupling laser, and the dephasing from inhomogeneous broadening. The reported results show the potential prospects of studying the dynamics of the collective effect of a large amount of atoms and manipulating a single-photon wave-packet based on the interaction between light and Rydberg atoms.
